In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.
One example: For four years we have waited expectantly for the pitter patter of tiny paws. Soon, that wait could finally be over. Tian Tian, the UK's only female giant panda, has conceived and could give birth to a cub as early as August. However Edinburgh Zoo, where the pandas live, have warned people 'not to get too excited' as the process is 'extremely complex'. Moreover, on the two previous occasions keepers inseminated Tian Tian - whose name means 'Sweetie' - she has failed to produce a panda cub. She was artificially inseminated again in March this year, but keepers at the zoo say implantation - when a fertilised egg attaches to the uterus - has not yet occurred.Tian Tian has conceived and could give birth to a cub as early as AugustShe has been inseminated twice before but so far failed to produce a cubTian Tian and Yang Guang arrived in 2011 from China to great fanfareOn loan at £600k a year, became first giant pandas to live in UK for 17 years 
 Questions:Under the terms of the agreement any cubs will return to _ at the age of two, the age at which they would normally leave their mother in the wild. (A) Tian Tian (B) UK (C) Edinburgh Zoo (D) Sweetie (E) Yang Guang (F) China
Solution is here: (F)
Explanation: This is a good example. Based on the passage, any cubs will return to China at the age of two

Now, solve this: If you were placed in a room with a button and told not to press it, could you fight the temptation? A current Reddit thread is testing its users resolve to do just this by placing a clickable button next to a 60-second timer. When The Button is clicked, the timer resets and it is not yet known what happens when the clock reaches zero because no-one can resist clicking it. More than 730,285 Reddit users have pressed The Button (pictured) since the California firm launched its r/thebutton thread on April Fool's Day. It is not yet known what happens when the timer reaches zero and users can only click The Button onceReddit launched its r/thebutton thread on April Fool's DayIt is accompanied by a timer that counts down from 60 secondsWhen The Button is clicked, the timer resets and the person who pressed it is given a colour that signifies how long they left it before pressingIt is not known what will happen if the timer drops to zero 
 Questions:One wrote: 'I am becoming obsessed with _,' while another said: 'This "button" thing on Reddit is driving me nuts. (A) Reddit (B) Button (C) The Button (D) California (E) April Fool's Day
Solution:
(C)