Rapp and Wunderman are subsidiaries of large agency holding companies that provide services for companies that want to communicate with consumers through telemarketing, direct mail, television, the Internet, and other forms of direct-response advertising. They are examples of agencies.

The correct answer is letter "A": direct-marketing.

Explanation:

Direct-marketing is a type of advertising that implies transmitting information about a product, service or entity directly to customers. Most of the time the promotional information is prompted without intermediaries but some times marketing agencies are hired for that specific purpose.

answerindustrial revolution;