You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.

Input: Consider Input: Sentence: A salmon swimming through a river experiences low friction, while a salmon swimming through a creek experiences high friction. Question: Which river causes the temperature of the salmon to increase more? (A) river (B) creek

Output: creek


Input: Consider Input: Sentence: Rod and Danny are running down the road.  Danny is not as fast. Question: After five minutes, who has gone farther? (A) Rod (B) Danny

Output: Rod


Input: Consider Input: Sentence: An envelope that is slid across a dresser gets rather hot, while one that is slid across a desk doesn't get very hot at all. Question: Which surface has more friction? (A) desk (B) dresser


Output: dresser