The only active ingredient the FDA allows in OTC stimulants is

According to the article Who's Afraid of the Big Bad Ad? about fear appeals in advertising, a short lived

ad which was in bad taste, if not ethically improper was about (a) finding an insect in a cake mix (b) death from a fall while bungee jumping (c) a child being hit by a car with bad brakes (d) getting lead poisoning from lead pencils

One problem with using observable expressive behaviors as a method of personality assessment is that

A) there is little variability in expressive style. B) most expressive behaviors are not observable. C) expressive style is often strongly influenced by cultural and social norms. D) it is extremely easy to control expressive behaviors.