In this task, you will be shown a conversation. You need to write a question with three choices for the conversation. Your question should be answerable based on the conversation and only have one correct answer. Note that you don't need to answer your question. "W" and "M" in the conversations stand for "woman" and "man".

M: What kind of father am I? My only son almost died and I didn't even know he was ill. W: Don't blame yourself. You are too busy to pay attention to him. If his mother were still alive, things would have been much better.
Why does the man blame himself? (A) His only son is dying. (B) His mother died some time ago. (C) He hasn't taken good care of his son.