Online retailer zulily.com asks customers to create a list of their favorite brands and then sends them a message with a link to make the purchase when the brands are on sale. In terms of direct marketing, these messages result in

A. paid search.

B. personal selling.

C. direct orders.

D. telemarketing.

E. lead generation

Which of these is an inherent weakness of advertising?

A. It can easily lead to promotion wars among competitors.

B. It is difficult to get media cooperation.

C. It can be very expensive to produce and place a message.

D. It is difficult for the firm to control the content in a message.

E. It is easily duplicated.