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: Janet is testing how much mass objects have. She is currently testing between a metal rod and a paper crane. She drops both from six feet in the air at the same time. Question: Which has stronger gravity? (A) metal rod (B) paper crane
Example Output: paper crane

Example Input: Sentence: Steve is waiting at the gym for his brother's basketball practice to end. He starts hitting around a hockey puck with his stick. The gym has a carpeted floor and more friction than the ice rink he goes to. Question: Which surface is rougher? (A) carpet (B) ice rink
Example Output: ice rink

Example Input: Sentence: Karl is trying to light a match on his pant legs with very little success. He finds a piece of rough leather to strike the match against and the match lights up in no time. Question: Which surface provides more friction for heat? (A) PANT LEG (B) ROUGH LEATHER
Example Output:
PANT LEG