instruction:
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.
question:
Sentence: The Moon has less mass then the Earth. Question: Which body emits a weaker gravitational field? (A) Moon (B) Earth
answer:
B

question:
Sentence: A huge bodybuilder and a skinny swimmer see who can throw a 45 pound plate further. Question: Who wins this contest? (A) Swimmer (B) Bodybuilder
answer:
A

question:
Sentence: A concrete slab isn't as flexible as a rubber sheet. Question: Which object is more likely to break if bent? (A) concrete slab (B) rubber sheet
answer:
B