You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the **incorrect** answer (return the string of the incorrect option, not A/B).

[EX Q]: Sentence: An empty dump truck and a dump truck full of iron ore start towards each other, as fast as they can, from opposite ends of a long street. Question: Which truck makes it 100 feet before the other truck? (A) the empty dump truck (B) the dump truck full of iron ore
[EX A]: the dump truck full of iron ore

[EX Q]: Sentence: A bathroom counter isn't as rough as a kitchen counter. Question: Which surface will cause a tape ball to get hotter when rolled across it? (A) bathroom counter (B) kitchen counter
[EX A]: bathroom counter

[EX Q]: Sentence: A shopping cart rolls by itself across a parking lot. Then it gets to a field. The cart rolls only a little more after it enters the field. Question: Why does this happen? (A) the parking lot is a rougher surface (B) the field is a rougher surface
[EX A]:
the parking lot is a rougher surface