Which statement about the effects of advertising is most true? (a) Subliminal messages implanted in advertisements are more effective than normal, everyday advertising; (b) normal TV ads for...

Which statement about the effects of advertising is most true? (a) Subliminal messages implanted in advertisements are more effective than normal, everyday advertising; (b) normal TV ads for painkillers or laundry detergents are more effective than subliminal messages implanted in ads; (c) both types of advertising are equally effective; or (d) neither type of advertising is effective.