Which marketing adage states that a person needs to see or hear something at least seven times before he or she remembers it?  

The Marketing Rule of 7 states that a prospect needs to “hear” the advertiser’s message at least 7 times before they’ll take action to buy that product or service. It’s a marketing maxim developed by the movie industry in the 1930's. Studio bosses discovered that a certain amount of advertising and promotion was required to compel someone to see one of their movies.

the answer is a) to be able to obey them.

d. it spread christianity. i just took the test and got it right.