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.
Q: Sentence: Tim was cutting up cakes for the bake sale. It was harder for him to slice into the angel food cake than it was the chocolate cake. Question: Which cake is most likely to be thicker? (A) angel food cake (B) chocolate cake
A:
B