Instructions: 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).
Input: Sentence: A dog toy thrown across a grassy field travels at a lower rate of speed compared to one thrown across a dirt field. Question: Which field is the least rough? (A) grassy field (B) dirt field
Output:
grassy field