Given the task definition and input, reply with output. In this task, you will be shown a conversation and a question. You need to answer the question and choose the correct option based on the conversation. "W" and "M" in the conversations stand for "woman" and "man".

M: Hi, Susan, Where were you at lunch time? W: Oh, sorry to miss you. But my thirst for knowledge was greater than my stomach for food. M: I never have that problem. So where were you? W: My science class ran over., Question: What did the woman do at lunchtime? (A) She tried to solve the problem. (B) She had a chat with her classmate. (C) She stayed at the classroom.
(C) She stayed at the classroom.