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: A bucket sliding across wet sand stays cooler then one sliding across dry sand. Question: Which surface is providing less resistance to the bucket? (A) wet sand (B) dry sand

Ex Output:
dry sand


Ex Input:
Sentence: Milo can roll his dumbell at a greater rate of speed in his gym then in his yoga studio. Question: Which surface has the most friction? (A) gym (B) yoga studio

Ex Output:
gym


Ex Input:
Sentence: Elizabeth rolled an egg down a marble countertop in the kitchen. She then moved the egg to the knitted rug in the living room. She noticed that the egg moved faster on the countertop than on the rug. Question: On which surface was more heat generated? (A) countertop (B) rug

Ex Output:

countertop