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).

Example Input: Sentence: A car and a bus are both driving 60 mph, but the car drives longer then the bus. Question: Which vehicle travelled the greater distance? (A) car (B) bus
Example Output: bus

Example Input: Sentence: Lisa and Melissa were each doing different exercise routines. After 1/2 hour, Lisa was dripping sweat and Melissa was still dry. Question: Who did the harder workout? (A) Melissa (B) Lisa
Example Output: Melissa

Example 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
Example Output:
grassy field