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: - product development. - diversification. - personal selling. - publicity. - sales promotion.

The correct answer is Sales promotion.

Explanation:

Sales promotion is a promotional mix tool that consists of promoting a product or service through incentives or activities such as offers, discounts, coupons, gifts, raffles, contests, prizes and free samples.

These incentives or activities are known as sales promotions, and are usually intended to promote the sale of the product or service, by encouraging, inducing or motivating the consumer to decide on their purchase or acquisition.

The use of sales promotions is an effective strategy commonly used when launching a new product to the market, when you want to gain market share from the competition, or simply when you want to have a rapid increase in sales; but that has a disadvantage a cost that it is necessary to evaluate well before using.