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: A man's boat is about to sink, so he throws his food and boxes of stuff overboard. Question: At which point would his boat be faster? (A) Before the stuff is thrown overboard (B) After the stuff is thrown overboard.

A: A
****
Q: Sentence: Mary and Billy are at the beach skipping rocks. Billy works out everyday, but Mary is weaker. Question: Who can throw the rocks farther? (A) Mary (B) Billy

A: A
****
Q: Sentence: Two chimps in a zoo always like to throw apples into the neighboring zebra enclosure. Zippy always seems to throw the apples further than Toby. Question: Which chimp is weaker? (A) Zippy (B) Toby

A:
A
****