Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Sentence: All massive objects like planets have very strong gravitational pulls. The Sun is larger than Neptune. Question: So which object in space has a stronger gravitational pull? (A) Sun (B) Neptune
Student:
Sun