Read the following conversation and answer the question.

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.

Question: Why does the man blame himself? 

- His only son is dying.

- His mother died some time ago.

- He hasn't taken good care of his son.


He hasn't taken good care of his son.