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: Jasper is carrying his nephew in the park.  Then it's his niece's turn.  His niece is five years older and weighs more. Question: Who has more of a gravity pull? (A) the niece (B) the nephew

Ex Output:
B


Ex Input:
Sentence: Samuel dropped a small light pebble and a large heavy rock off a cliff at the same time. Question: Which one hit the ground at the bottom of the cliff first? (A) the pebble (B) the large rock

Ex Output:
A


Ex Input:
Sentence: John and Rita are going for a run.  Rita gets tired and takes a break on the park bench. Question: After twenty minutes in the park, who has run farther? (A) John (B) Rita

Ex Output:

B