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 computer mouse moves with ease on a smooth plastic mouse pad, whereas, on the flat wooden desk at times it sticks and does not work. Question: Which surface has more friction? (A) wooden desk (B) plastic mouse pad
Example Output: plastic mouse pad

Example Input: Sentence: Lane is testing how strong gravity pulls on different objects. She drops a brick and a penny from a roof at the same time. Question: Which has larger mass and hits the ground first? (A) brick (B) penny
Example Output: penny

Example Input: Sentence: Judith and Cassie decide to go on a walk together and talk about what's going on in their lives. They start at Judith's house and plan to go around the block and back. Cassie decides to stop at her friend's house for the rest of the day while Judith finishes the walk. Question: Who walked more? (A) Cassie/ (B) Judith
Example Output:
Cassie/