Given the task definition and input, reply with output. You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.

Sentence: Tom throws a rubber ball and an ice ball of equal diameter. Question: Which ball is least likely to break? (A) Rubber ball (B) Ice ball
Rubber ball