Definition: You are given a question on US foreign policy. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: The realm of policy decisions concerned primarily with relations between the United States and the rest of the world is known as
(A)terrorism policy. (B)economic policy. (C)foreign policy. (D)international policy.

C