You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

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: (F)
Why? This is a good example. Based on the passage, any cubs will return to China at the age of two

New input: Victim: Dr Martin Luther King The FBI repeatedly deceived Congress by destroying vital files relating to the assassination of Martin Luther King, a new book claims. Leading King historian Stuart Wexler said that the bureau chose to cover up the potential role of a high level informant in the killing rather than tell the truth. Wexler said that it could have been one of the greatest scandals in the history of the FBI - but now we may never know what happened. By destroying the files the FBI disobeyed a direct order not to do so from a Congressional Committee which had been set up to investigate the killing of King and former President John F Kennedy.FBI accused in new book - by leading King historian Stuart Wexler - of misleading Congress by destroying files on civil rights leader's murderHe tells Daily Mail Online agency disobeyed direct order to preserve all materials and believes it was to protect informer from being identifiedTommy Tarrants, high-ranking KKK member went from being little-known racist to having his picture shown to witnessesFiles from two field offices which had information on Tarrants were destroyed in 1977 after Congress launched Assassinations CommitteeWexler believes it is because they could have exposed Laude Matthews, head of Mississippi KKK, as an FBI asset under deep cover 
 Questions:'They wanted _ to give evidence to the committee, they didn't want him to be a suspect. (A) Martin Luther King (B) FBI (C) Congress (D) King (E) Stuart Wexler (F) Wexler (G) Congressional Committee (H) John F Kennedy (I) Daily Mail Online (J) Tommy Tarrants (K) KKK (L) Tarrants (M) Assassinations Committee (N) Laude Matthews (O) Mississippi KKK
Solution:
(J)