Why Should We Be Skeptical About Advertisers' Claims That Subliminal

Why should we be skeptical about advertisers' claims that subliminal advertisements work?

A) People often see or hear so-called subliminal messages that aren't there.
B) Subliminal advertisements only work on a small segment of the population.
C) Advertisers seldom, if ever, use controlled studies to support their claims.
D) Advertisers rely more on people's self-reports than on their actual purchasing patterns.
E) Many auditory and visual stimuli are not subliminal at all and can be consciously perceived.