Answer:
the occurrence of insight
Explanation:
Dianne wants to go to a college to which her parents oppose. She is thinking of ways to persuade them. In thinking about the ways she stumbles upon an advertisement which says her college is a place which is vacation area.
She did not know this before. She thought that telling her parents that her college is in an area that is a vacation area would persuade them as they could go on vacation where their daughter was staying.
Hence, the question is referring to the occurrence of insight.
