Which of the Following Statements Is TRUE Regarding Subliminal Stimuli

Which of the following statements is TRUE regarding subliminal stimuli?

A) Research on messages presented too rapidly to elicit awareness indicates that such messages can actually have a substantial effect.
B) There is evidence that marketers are using subliminal messages.
C) A subliminal ad is different from a "normal" ad in that it "hides" key persuasive information within the ad by making it so weak that it is difficult or impossible for an individual to physically detect.
D) Subliminal advertising has not been the focus of intense study and public concern.
E) Masked symbols, deliberate or accidental, do appear to affect standard measures of advertising effectiveness and can influence consumption behavior.