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 input: 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
Example output: (F)
Example explanation: This is a good example. Based on the passage, any cubs will return to China at the age of two
Q: Des Moines, Iowa (CNN) Bernie Sanders launched his presidential campaign in 2015 by promising not to go negative -- either on the stump or in ads -- against Hillary Clinton. But as the race for the Democratic nomination gets tighter and nastier, Sanders' campaign is confronting that promise when it considers how to respond to attacks from the Clinton campaign, walking the fine line between drawing contrasts with the former secretary of state and outright attacking her. "I have never run a negative radio or television ad in my life. It is my very strong hope that I never will," Sanders said at a New Hampshire town hall Thursday night. "And I believe, if people are distorting my record, as is the case right now, we are going to deal with it and I have dealt with it and we will continue to deal with it.Bernie Sanders had promised not to go negative in the race against Hillary ClintonBut the race is getting nastier, and Sanders has a new ad highlighting differences between him and Clinton on Wall Street 
 Questions:Sanders is still leading in _ and a new poll released Thursday shows Clinton up by only 2% in Iowa. (A) Des Moines (B) Iowa (C) CNN (D) Bernie Sanders (E) Hillary Clinton (F) Democratic (G) Sanders (H) Clinton (I) New Hampshire (J) Wall Street
A:
(I)