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'.

Ex Input:
Sentence: A jet is faster then a prop plane. Question: If both fly around for the same amount of time, which will have gone farther? (A) jet (B) prop plane

Ex Output:
A


Ex Input:
Sentence: The ranger and the rustler both were riding horses that galloped at the same speed.  The rustler left an hour before the ranger. Question: Who has traveled further? (A) the ranger (B) the rustler

Ex Output:
B


Ex Input:
Sentence: Neighbors Calvin and Debra could both see the forest fire from their homes. Debra watched with eyes wide and unblinking, but Calvin had to squint against its intensity. Question: Whose home is closer to the blaze? (A) Calvin's home is closer (B) Debra's home is closer

Ex Output:

A