Answer:
Promotion
Step-by-step explanation:
Promotion is a marketing tool or function that aims at communicating the various aspects of a product, thereby, generating interest in them to purchase the product.
Sweepstakes are a type of marketing promotional tool adopted by organizations. Customers are asked to register their names in some contest that promises prizes for winners. A lucky draw is carried out to identify the winner at the end of the contest. This may or may or require the customer to purchase the organization's product.