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 Q]: Sentence: A penguin is forced to swim at a low rate of speed through icy water, but can swim rather quickly through clear water. Question: Which water is the most rough? (A) icy water (B) clear water
[EX A]: clear water

[EX Q]: Sentence: A little boy rolls two of his rubber balls down the hallway. The red ball stops before the blue one does. Question: Which one rolled the furthest? (A) Red ball (B) blue ball.
[EX A]: Red ball

[EX Q]: Sentence: A slice of bread can slide a greater distance across a serving plate then across a floor. Question: Which surface provides more friction to the slice of bread? (A) serving plate (B) floor
[EX A]:
serving plate