One of the first public-key schemes, _______, was developed in 1977 by Ron Rivest, Adi Shamir, and Len Adleman

Listening to your customers in order to develop a better product is an example of ______.

A. market capitalization B. promotion and public relations C. effective marketing research D. effective distribution

An advertiser with an extremely low advertising budget would most likely avoid

a. press releases b. For Sale signs c. billboards d. the internet