What constitutes false advertising?

False advertising refers to any form of advertising that is misleading or deceptive, particularly in a manner that can affect a consumer's purchasing decisions. The correct choice highlights that making misleading claims about a product or service constitutes false advertising because it can lead consumers to have an inaccurate understanding of what is being offered. This might involve exaggerating benefits, omitting critical information, or presenting false information altogether, intentionally or not.

On the other hand, high-quality marketing campaigns, the use of humor in advertisements, and providing customer testimonials can all be legitimate forms of advertising. High-quality marketing campaigns can enhance a product's appeal without being misleading, humor can engage consumers in a memorable way while still conveying truthful information, and customer testimonials can provide insight into real experiences with a product, as long as they are genuine and not manipulated to mislead consumers.