In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
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Question: Where can a description of us citizens civil liberties be found?

Answer: United States Bill of Rights


Question: Who is the host of khatron ke khiladi 2017?

Answer: Rohit Shetty


Question: Why did the united states pursue a policy of containment?

Answer:
prevent the spread of communism after the end of World War II