Given the task definition, example input & output, solve the new input case.
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.
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
Output: (F)
This is a good example. Based on the passage, any cubs will return to China at the age of two

New input case for you: (CNN) -- Make no mistake. A handshake is just a handshake. Fifty-year-old geopolitical conflicts don't turn on a dime. American foreign policy isn't an Etch A Sketch where you get to wipe the board clean in every news cycle. Between countries, as with people, grudges and hard feelings don't fade easily. These things are true no matter how eager some in the media are to give President Barack Obama's sagging job approval rating -- just 41% in a recent Gallup Poll -- a boost by likening him to Nelson Mandela. Seriously? There is far-fetched, and there is farcical. Comparing Obama to Mandela falls into the latter category.Ruben Navarrette: Make no mistake, a handshake is just a handshakeNavarrette: President Obama's handshake with Raul Castro is no big dealHe says it does not mean that U.S.-Cuba relations will change for the betterNavarrette: Let's keep in mind the atrocious human rights record of Cuba 
 Questions:Next, I'm not even sure that _ knows how to bring people together. (A) CNN (B) American (C) Etch A Sketch (D) Barack Obama (E) Gallup Poll (F) Nelson Mandela (G) Mandela (H) Ruben Navarrette (I) Navarrette (J) Raul Castro (K) U.S. (L) Cuba
Output:
(D)