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: A microscope experiences less resistance when sliding across a lab table then when sliding across a lab floor. Question: Which surface will force the microscope to register less of an increase in temperature? (A) lab table (B) lab floor

Ex Output:
B


Ex Input:
Sentence: It's easy to stab a pin into a pin cushion, but it's hard to stab one into a pillow. Question: Which surface will make the pin get hotter when stabbing into it? (A) pin cushion (B) pillow

Ex Output:
A


Ex Input:
Sentence: Thelma had two chocolate bars. One had been in the freezer, the other in the warm sun. She saw that the one in the freezer couldn't be bent as easily as the warm one. Question: Which was more likely to break? (A) cold chocolate (B) warm chocolate

Ex Output:

B