"man bites dog," a commonly used headline in beginning journalism classes, suggests that news becomes news when it is what?

Extraordinary

Explanation:

The headline"man bites dog" is an abbreviated account of the phrase:

"When a dog bites a man, that is not news, because it happens so often. But if a man bites a dog, that is news", attributed to both Alfred Harmsworth (1865–1922) and Charles Anderson Dana (1819–1897).

It refers to the way unusual events, like a man biting a dog, are more newsworthy than ordinary ones, with comparable results, like a man bitten by a dog.

answer; compulsions is a term that refers to repetitive behaviors performed;