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: Karen was running late so she knew she should take the red bus instead of the blue one. Question: Which bus is more likely to be the express bus? (A) The red bus (B) The blue bus

Ex Output:
A


Ex Input:
Sentence: Matt knows that when he rolls his baseball across the infield it will roll a greater distance then when he rolls it across the outfield. Question: Which field will make the ball get hotter? (A) infield (B) outfield

Ex Output:
B


Ex Input:
Sentence: Jim could run twice as fast as his sister Jen. They had to deliver some urgent vaccines to the next town to stop the spread of a dangerous virus. Question: Who should run with the vaccines in order to get them there in a shorter amount of time? (A) Jim (B) Jen

Ex Output:

A