In the Context of the Effects of Advertising, Humorous Advertising

In the context of the effects of advertising, humorous advertising:

A) is not effective when used to reinforce and remind loyal customers about the benefits of a product.
B) is effective in changing consumers' deeply rooted values and attitudes.
C) is not used to publicize new brands introduced in the market.
D) is effective at shaping attitudes when consumers already have a positive image of an advertised brand.