Final answer:
An advertisement for a non-sports product with a sponsorship-based level of integration is referred to as an a. Associative strategy in sports marketing.
Step-by-step explanation:
According to the article "The Four Domains of Sports Marketing", an advertisement for a non-sports product with a sponsorship-based level of integration should use an a. Associative strategy. This type of strategy leverages the connection that the audience or consumers have with a particular sport or sports team to promote a product or service that is not directly related to sports.
By attaching the non-sports product to a sports entity, the brand hopes to capitalize on the positive feelings and loyalty that fans have towards the sport or team, thereby enhancing their own product's reputation and appeal.