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 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

Ex Output:
Cassie/


Ex Input:
Sentence: Mike's truck is slower then his car. Question: If he drives both for an hour on the freeway, which will have gone the smaller distance? (A) truck (B) car

Ex Output:
car


Ex Input:
Sentence: Tim has to push an ice sculpture across the ballroom in order to get his restaurant ready for a wedding. He notices that it is easier to push the sculpture when he moves it across the polished ballroom floor than when he moves it across the rough cobblestone floor. Question: If Tim is trying to keep the ice sculpture from melting, which surface should he push it across in order to produce less heat? (A) ballroom floor (B) cobblestone floor

Ex Output:

cobblestone floor