In a communication process, an external influence such as competitive advertising that impairs the effectiveness of an advertising message is referred to as ________

What annual rate of return would Grandma Zoe need to earn if she deposits $1,000 per month into an account beginning one month from today in order to have a total of $1,000,000 in 30 years?

A) 4.55% B) 5.28% C) 5.98% D) 6.23%

Which of the following are customers who learn about new products from sources other than previous users?

a. adopters b. laggards c. innovators d. imitators