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.
--------
Question: Sentence: Greg and Hank each plan a cross country journey. Greg takes a car. Hank wants to walk cross country. Question: Who crosses the country first? (A) Greg (B) Hank

Answer: Greg


Question: Sentence: Rebecca rolls the globe in her classroom over a book and then the carpeting. Rolling it over the book generates less heat than on the carpet. Question: Which surface has more resistance? (A) book (B) carpeting

Answer: carpeting


Question: Sentence: A computer mouse moves with ease on a smooth plastic mouse pad, whereas, on the flat wooden desk at times it sticks and does not work. Question: Which surface has more friction? (A) wooden desk (B) plastic mouse pad

Answer:
wooden desk