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.

Q: Sentence: Neptune is one of the largest planets in the solar system. Question: Which object has stronger gravity? (A) Mercury (B) Neptune

A: A
****
Q: Sentence: A surfboard isn't as flexible as cardboard. Question: Which item will break easier when bent? (A) surfboard (B) cardboard

A: B
****
Q: Sentence: Gary is trying to bend different things. He tries to bend a rubber mat and a wooden pencil. Question: Which breaks first? (A) rubber mat (B) wooden pencil

A:
A
****