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) Democratic Rep. Tulsi Gabbard said she's "skeptical" that Bashar al-Assad's regime was behind the chemical weapons attack that killed dozens of people in Syria. Gabbard's remarks came after Secretary of State Rex Tillerson said, "We have a very high level of confidence that the attacks were carried out by aircraft under the direction of the Bashar al-Assad regime," and President Donald Trump said: "There can be no dispute that Syria used banned chemical weapons." CNN's Wolf Blitzer asked Gabbard if she didn't believe the President, the secretary of state and Pentagon officials, all of whom came to the same conclusion: that Assad's regime was responsible. Gabbard mentioned the previous invasion of Iraq, and the intelligence that suggested Iraq had weapons of mass destruction, which turned out to be false. "So, yes, I'm skeptical," she said.The Hawaiian congresswoman disagreed with the Trump administration's assessments"Why should we just blindly follow this escalation of a counterproductive regime-change war?" 
 Questions:"Don't you believe _-Assad bears any responsibility for the horrific deaths that have occurred in his own country?". (A) CNN (B) Democratic (C) Tulsi Gabbard (D) Bashar al (E) Assad (F) Syria (G) Gabbard (H) Rex Tillerson (I) Donald Trump (J) Wolf Blitzer (K) Pentagon (L) Iraq (M) Hawaiian (N) Trump
Output:
(D)