You are given a sentence, a question and two answer options. Your task is to write down the index ('A' or 'B') of the **incorrect** option for the given question.

Ex Input:
Sentence: A skateboard's wheels get less hot riding through an auditorium compared to a concert hall. Question: Which surface offers greater resistance? (A) concert hall (B) auditorium

Ex Output:
B


Ex Input:
Sentence: Sheila and Harvey both wanted to make it to the cabin first in order to claim the best room. Sheila began the one hour drive to the cabin at 9 A.M. but Harvey didn't leave until 9:45 A.M. Question: Who is going to get there first? (A) Harvey (B) Sheila

Ex Output:
A


Ex Input:
Sentence: A banjo slides at a low rate of speed across a porch swing, but a high rate of speed across the porch of Mike's old house. Question: Which surface is going to give the banjo a rougher ride? (A) porch swing (B) porch

Ex Output:

B