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: Washington (CNN) A new poll in Rust Belt states over the weekend had some stark news for President Donald Trump: His job approval was under 40%. Only about a quarter said they were proud of him. Broad majorities said they were embarrassed. But his favorable ratings? They are basically the same as what they were on Election Day. The new numbers from a NBC/Marist survey show that the President's favorable numbers look very, very similar to where they were almost 10 months ago when he was elected. Trump's favorable rating was 39% in Michigan, 35% in Wisconsin and 42% in Pennsylvania on Election Day among those who came out to vote, according to exit polls. Those numbers are now 34% in Michigan, 32% in Wisconsin and 35% in Pennsylvania among all voters. Plus, Trump's unfavorable ratings are within 3 percentage points of his Election Day ratings.Trump's favorable rating is hovering the mid-30s in the Rust Belt, roughly the same as on Election DayAbout one in five Trump voters nationally in 2016 had an unfavorable view of him 
 Questions:Trump won among people who didn't like both candidates by 20 to 30 percentage points in each _ state. (A) Washington (B) CNN (C) Rust Belt (D) Donald Trump (E) Broad (F) Election Day (G) NBC (H) Marist (I) Trump (J) Michigan (K) Wisconsin (L) Pennsylvania
Solution:
(C)