You will be given a definition of a task first, then some input of the task.
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'.

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
Output:
B