I would say number 1 because all the others give a sort of Emphasis to the donor, but the question wants the sentence to Emphasize on the donation rather than the donor so number 1
Answer: rising action
Explanation: because the story is rising to a conclusing
It’s the main idea of a piece of writing. It’s what an author is discussing and what the piece of work is focused on.
There's nothing really that means exactly "laughing at oneself," as far as I know, but some related words are self-ridicule and self-belittlement, though these have a more negative connotation. Hope this helps.