You are given a sentence, a question and two answer options. Your task is to write down the index ('A' or 'B') of the **incorrect** option for the given question.

Ex Input:
Sentence: A jet is faster then a prop plane. Question: If both fly around for the same amount of time, which will have gone farther? (A) jet (B) prop plane

Ex Output:
B


Ex Input:
Sentence: Tom has recently gotten a prosthetic arm and he notices that it is somewhat stronger than his human arm. Tom tosses a tennis ball to his friend, first with the human arm then with the prosthetic arm. Question: Which arm will toss the ball a shorter distance? (A) Tom's prosthetic arm (B) Tom's human arm

Ex Output:
A


Ex Input:
Sentence: A roll with cinnamon sugar has been warmed up in the oven. The roll is pushed a little ways to move it off the cookie sheet. The roll moves a few inches. Then it slides off onto the plate. The second it hits the plate, it speeds up and flies off the plate. Question: Which surface is stickier? (A) cookie sheet (B) plate

Ex Output:

B