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: Tim and Mary's parents are in a shouting match. Tim is down the block getting ice cream, while his sister Mary is sitting in her bedroom. Question: Who will the yelling be loudest for? (A) Mary (B) Tim

Ex Output:
B


Ex Input:
Sentence: A spaceship explores the moon and later explores an asteroid. The moon is several times more massive than the asteroid. Question: Which celestial body will the spaceship have an easier time escaping due to its lower force of gravity? (A) asteroid (B) The Moon

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