In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

Example Input: Article: Google is preparing for changes in its privacy policy beginning March 1st. The company says it plans to replace more than 60 separate policies for different products with one main policy. Privacy activists criticized last month's announcement. They are concerned that the new policy will make it easier to track the activities of users across Google's many products -- from Gmail to YouTube. Marc Rotenberg heads the Electronic Privacy Information Center in Washington. He says Google's aim is to create a single unified profile  of its users. "We believe that not only is that a threat to privacy, we actually believe it is illegal, because last year Google entered into an agreement with the US Federal Trade Commission in which they said they would not engage in that kind of data sharing without the permission of their users." Google says its new policy will make it simpler for users to share information across services like Google Search, Gmail and Google Calendar. And it says the new policy will help personalize each user's experience. Over time, it says, users can expect to see better search results, fewer unwanted advertisements and more content targeted to their interests. But Marc Rotenberg says in return, people who choose to use Google will lose control over the information they share. "The type of information you might provide for an e-mail service, for example, such as your address book, which contains private information, is different from the type of information that you might provide for a social network service where people purposely make information publicly available to their friends." Mr. Rotenberg says these two kinds of services should be kept separate. "By trying to combine these two services, in our view, Google is actually undermining a very well established expectation of privacy, especially for popular Internet services like electronic mail." Critics also see a bigger problem with Google's new policy. The plan would not give users a choice to drop out of the data sharing.  "In our view, if people want to make their potential information available, they certainly should have the right to do that. What we are objecting to is the effort by the company to take                                                          away from the users that choice that they should have. That just seems unfair." Google says it will not be collecting any more data than it does now. And it says users will still be able to control many privacy settings. For example, they can disable their search history and set Gmail chat to "off the record." European Union officials have asked the company to delay the new policy to make sure it would not violate any EU data protection laws. Marc Rotenberg thinks the Federal Trade Commission in Washington might also try to block the new policy. 
 Question: What's Google's purpose to change its privacy policy according to Marc Rotenberg? 
 Options: (A) To serve its users better. (B) To make it easier for their work (C) To personalize each user's experience (D) To build up a unified profile of its users 
 Asnwer: B
Example Output: No

Example Input: Article: Do you want to write your password down so that no one can see it, or do you want to send someone a secret message? Knowing how to make an invisible ink message will have you feeling like a secret agent in no time. These are instructions for making invisible ink using baking soda. Difficulty: Easy Time required: A few minutes  What you need: Baking soda, Paper, Water, Light bulb, Paintbrush, Measuring cup, Purple grape juice Here's how: There are at least two methods of using baking soda as invisible ink. Mix equal amounts of water and baking soda. Use a paintbrush to write a message onto white paper, using the baking soda solution   as "ink". Allow the ink to dry. One way to read the message is to hold the paper up to a heat source, such as a light bulb. The baking soda will cause the writing in the paper to turn brown. The second way to read the message is to paint over the paper with purple grape juice. The message will appear in a different color1. Tips: If you are using the heating method, avoid burning the paper. Baking soda and grape juice react in an acid-base   reaction, producing a color1 change in the paper. Grape juice concentrate   results in a more visible color1 change than regular grape juice. 
 Question: is not needed for making invisible ink. 
 Options: (A) Baking soda (B) Paper (C) Water (D) Ink 
 Asnwer: C
Example Output: No

Example Input: Article: I've done many things that would make any parent proud. I've taken part in sports, community work and school events, but I am most proud to be a good big brother. I have to watch over four sisters and a brother, plus myself. That's quitea task, but one I feel I have gotten good at. My brother needs more attention than most siblings. When he was nine, he was hit by a pick-up truck on the way to the bus stop and lost use of the lower two-thirds of his body. He's been in a wheelchair for six years. My brother does many things, but sometimes he tries to do things he used to do but can't now. I' m always there with words of encouragement. I now watch my brother struggle to do as many things as he can within and beyond his limits. Should he fall, I will be the person to pick him up. I also watch as my younger sisters grow up into intelligent, beautiful young women. Whenever my brother or sisters need a helping hand or words of encouragement, I'm on the job. That's what I, the big brother, am for. 
 Question: How many people are probably there in the author's family?   _  . 
 Options: (A) 5 (B) 6 (C) 7 (D) 8 
 Asnwer: D
Example Output:
Yes

