A Key Concept of the Two- Factor Theory on the Effects

A key concept of the two- factor theory on the effects of repetition of ads is that:

A) the success of repetition in persuasiveness is dependent upon the factors of source credibility and attractiveness
B) uncertainty about a product grows if the consumer sees the ad too many times
C) learning increases as forgetting decreases
D) two separate psychological processes are operating when a consumer is repeatedly exposed to an ad
E) consumers are one factor in the success of an ad and the other factor in any given circumstance is largely unknown