Final answer:
Sales promotions consist of discounts, coupons, and free samples, which are direct tactics to boost sales. Advertising and public relations serve to craft a brand's image and are not typically considered forms of sales promotion.
Step-by-step explanation:
Forms of sales promotion include tactics such as discounts, coupons, and free samples. These strategies are employed to increase consumer demand and stimulate market interest in a product or service. On the other hand, advertising and public relations are generally not classified as sales promotion; they are broader marketing communication strategies designed to build brand image and awareness over a longer term.