Answer:
Grass-root marketing
Step-by-step explanation:
Grassroots marketing is a business promotion strategy that aims to create product awareness from the ground moving up. In this approach, marketers usually move to regions and estates to meet their target clients. Marketers seek to gain the support of groups of customers and hope they will spread good words about the brand.
Grass root marketing is unlike the expensive commercial advertising whose messages originate from the top coming down. The action by Nike of getting close to potential customers is an example of grassroots marketing. The company is sponsoring a local event and giving away free samples with the intent of getting noticed by participants of the games. It expects all the attendant to spread good words about the company products and brand name.