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: Good morning, Dr. Ellis' Office. W: This is Mrs. Jackson. May I speak to the doctor? M: Mrs. Jackson, Dr. Ellis is here. How's that new tooth? W: Not so good, doctor. That's what I'm calling about. It just doesn't seem to fit right. M: Well, that's to be expected during the first few days after it has been put in. Have you been leaving it in as I told you? W: Well, it hurts so much, doctor, especially when I eat. M: I understand, Mrs. Jackson. It hurts in the beginning, I know. But it's really better to leave it in, except when you clean it of course. W: Well, I did at first, doctor, but it hurt so much that I just couldn't stand it any longer. M: Well, maybe we can set it a little more. W: Set it right? M: Yes. When can you come here? W: Oh, right away, doctor, if you don't mind. M: Let me see, can you get here by 11:00? W: Oh, yes, doctor. I can make it. Thank you. See you then., Question: Why did the woman's tooth ache so much? (A) Because the tooth didn't fit quite right. (B) Because she didn't take good care of the tooth. (C) Because she often ate sweets.

(A) Because the tooth didn't fit quite right.