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: Wisconsin Gov. Scott Walker blamed President Barack Obama on Sunday for the attacks on police officers by stating the president has contributed to the anti-police environment in the country. In an interview with CNN on 'State of the Union,' Walker said that Obama has not offered enough support for police who are 'overwhelmingly doing the right think every day.' 'I think his absence of leadership, of speaking out on this issue' has contributed to police being killed, the Republican presidential candidate said. 'We need a president who first and foremost says that law enforcement professionals across this country are doing the job,' Walker stated.In an interview with CNN on Sunday, the Republican presidential candidate said Obama had not offered enough 'support' to police officersHe claimed Obama's 'absence of leadership of speaking out' on the issue had contributed to several police officers being killed in recent weeks 
 Questions:Host Jake Tapper countered _ and said he has heard the president praise police officers. (A) Wisconsin (B) Scott Walker (C) Barack Obama (D) CNN (E) State of the Union (F) Obama (G) Republican
Output:
(B)