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.

[EX Q]: Sentence: Ron is at the gym lifting weights.  Tony joins him an hour into his workout.  They leave at the same time. Question: Who sweat more? (A) Ron (B) Tony
[EX A]: Ron

[EX Q]: 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
[EX A]: dresser

[EX Q]: Sentence: Justine raises pigeons. She releases two of them from a cage at the same time, to have them race. The white pigeon is faster than the grey pigeon. Question: Which pigeon goes a greater distance? (A) white pigeon (B) grey pigeon
[EX A]:
white pigeon