A television commercial for Prime mouthwash shows a young man at a night club approaching a group of women. As he opens his mouth to introduce himself, the women get up from their seats and leave. The ad's caption reads, "Do you suffer from bad breath?" This is an example of

Fear appeal

Explanation:

A fear appeal is a persuasive message that insinuates fear in order to divert behavior through the threat of impending danger or harm. It presents a risk, presents the vulnerability to the risk, and then may, or may not suggest a form of protective action.

The marketers use it in advertising.

A fear appraisal, or fear appeal, uses consumers' fears to motivate them to purchase a product or contribute to a cause. ... For example, an ad campaign may appeal to people's fear of body odor to convince them to buy deodorant.

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