What Can We Say About Advertisements That Appear to Convey

What can we say about advertisements that appear to convey no information at all

A) They are usually associated with "infomercials."
B) They are mostly useless to consumers, but valuable to firms.
C) They are mostly useless to firms, but valuable to consumers for their entertainment quality alone.
D) They may, in fact, signal to consumers the quality of its product given a firm's willingness to spend money on advertising.