You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct option for the given question. Write down the answer index: 'A' or 'B'.

Example input: Sentence: Jacob and Benny are squatting at the gym. Jacob has thin frail legs and Benny has big strong legs. Question: Who squats less weight? (A) Jacob (B) Benny
Example output: A
Example explanation: Typically, people with thin frail legs squat less weight than people with big strong legs, so the answer is A.
Q: Sentence: Pet food sliding across a shiny floor has low resistance, while pet food sliding across a matte floor has high resistance. Question: Which floor will allow the top speed of the pet food to reach a higher level? (A) matte floor (B) shiny floor
A:
B