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 Q]: Sentence: Rolling a golf ball along the fairly is very easy, but rolling one along tall grass is difficult. Question: Which surface will let a golf ball roll for a longer distance? (A) fairway (B) tall grass
[EX A]: B

[EX Q]: Sentence: A capybara isn't as fast of a runner as an anteater. Question: If both animals make the same journey, which will get there sooner? (A) capybara (B) anteater
[EX A]: A

[EX Q]: Sentence: Two identical airplanes, except for their colors, are in the sky. The black and white one looks smaller than the blue one. Question: Why? (A) the black and white one is higher in the sky (B) the blue one is higher in the sky
[EX A]:
B