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 answer (return the string of the correct option, not 'A' or 'B') for the given question.

Sentence: Kory set up two slides in his backyard. One slide is metal and doesn't create much friction, while the other slide is wood and creates more friction. Question: If Kory slides down both slides, which one will he go quicker on? (A) metal slide (B) wood slide
Output:
metal slide