Direct-To-Consumer Pharmaceutical Advertising Has Increased the Consumption of Numerous Categories

Direct-to-consumer pharmaceutical advertising has increased the consumption of numerous categories of medications. Consumers confirm that they receive most of the information about these medications from TV commercials rather than from their physicians. In response, the pharmaceutical industry has developed voluntary restrictions regarding this marketing method. Why have they done this?

A) to slow sales and reduce the incidence of out-of-stock situations
B) to avoid government regulation of their marketing practices
C) to improve consumers' perceptions of their companies
D) to save money
E) to increase sales