In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

Input: Consider Input: Article: We like people who look like us, because they tend to have personalities similar to our own. And, a new study suggests, the longer we are with someone, the more similarities in appearance grow. Researchers set out to study why couples often tend to look like one another. They asked 11 male and 11 female participants to judge the age, attractiveness and personality of 160 real-life married couples. Photographs of husbands and wives were viewed separately, so the participants didn't know who was married to whom. The test participants rated men and women who were actual couples as looking alike and having similar personalities. Also, the longer the couples had been together, the greater the similarities. The researchers guess that the sharing of experiences might affect how couples look. The idea that there is a connection between appearance and personality might seem strange at first, but there could be biological reasons for a link, said study member Tony Little from the University of Liverpool in England. "The face displays our emotions and over time, emotional expressions may become written in the face," Little told Live Science. For example, someone who smiles a lot may develop lines and muscles that are suggestive of someone who is happy. Other studies have shown that partners who are genetically similar to each other tend to have happier marriages. The new study indicates that people have different features when using facial appearance to make decisions about someone's personality, and that the particular cues  focused on change from face to face. Vital to the decision, however, are eyes and smiles. "Smiles are important social cues that may tell us whether or not someone is friendly, and eyes are also a traditional focus of attention," Little said. Overall face shape can be important too. For example, the combination of large chins and strong brow ridges can create an impression of disagreeableness and being unwilling to cooperate, Little said. 
 Question: Why do we like those who look like us? 
 Options: (A) Because they tend to like us. (B) Because opposites usually attract each other. (C) Because their personalities are similar to ours. (D) Because we often marry those who look like us.

Output: C


Input: Consider Input: Article: Of Chinese secondary school students top ten heroes,Mao Zedong,ranks number one and Olympic track gold medal winner,Liu Xiang,ranks fifth,according to a survey conducted by All-China Women's Federation (ACWF). Late Chinese leaders,Mao Zedong and Zhou Enlai,and revolutionary martyrs,Liu Hulan and Dong Cunrui,all have remained important heroes in the eyes of Chinese teenagers aged 13 to 18. Meanwhile,the 2004 Olympic track and field star,Liu Xiang;model police chief,Ren Changxia;Hong Kong action star,Jackie Chan,and China's first astronaut Yang Liwei,have ascended to be the new stars among the students. "The coexistence of old and new models in youth's hearts reveal the new era's character," said Han Xiangjing,president of "China Women" magazine attached to ACWF. The respondents also chose their parents as heroes,ranking number two. "This reflects that young students' selection standards of heroes have changed to be more human oriented,emotional and personalized,"Han said. Reasons given by the surveyed students for this choice are:"parents are the people I love and indispensable to me"and"they consistently guide,encourage and support me." The survey was conducted in six provinces and cities across China,including Beijing,Shanghai,Henan,Shanxi,Liaoning and Hunan.Students completed 1018 questionnaires;443 polled were boys and 575 were girls. 
 Question: This passage most probably appears   _  . 
 Options: (A) in a newspaper (B) in a magazine (C) in a history book (D) in a report

Output: A


Input: Consider Input: Article: American cities are similar to other cities around the world.In every country,  cities reflect the values of the culture.American cities are changing,just as American society is changing. After World War II,the population of most large American cities decreased;however, the population in many Sun Belt cities increased.In the late 1940s and early 1950s,city residents became wealthier.They had more children so they needed more space.They moved out of their apartments in the city to buy their own homes.They bought houses in the suburbs . Now things are changing,the children of the people who left the cities in the 1950s are now adults.Many, unlike their parents,want to live in the cities.They continue to move to Sun Belt cities and older ones of the Northeast and Midwest.Many young professionals are moving back into the city.They prefer the city to the suburbs because their jobs are there;or they just enjoy the excitement and possibilities that the city offers. This population shift is bringing problems as well as benefits.Countless poor people must leave their apartments in the city because the owners want to sell the buildings or make apartments for sale instead of for rent.In the 1950s,many poor people did not have enough money to move to the suburbs;now many of these same people do not have enough money to stay in the cities. Only a few years ago,people thought that the older American cities were dying.Some city residents now see a bright,new future.Others see only problems and conflicts.One thing is sure:many dying cities in America are alive again. 
 Question: What does the author think of cities all over the world? 
 Options: (A) They are dying. (B) They are hopeless. (C) They are similar. (D) They are different.


Output: C


