Natural essences, a company that manufactures hair products, offers "dollar-off coupons" to adult women to get them to try its shampoos and conditioners. this is an example of:

a. sales promotion.
b. publicity.
c. personal selling.
d. diversification.
e. product development.

A. sales promotion.

Explanation:

Sales promotion refers to those promotion activities that stimulate interest, trial, or purchase by final customers or others in the channel. This can involve use of coupons, point-of-purchase materials, samples, signs, contests, events, catalogs, novelties, and circulars.