Li is the owner of a boutique marketing agency that manages Amazon Ads campaigns for creatives. What type of advertiser would Li be considered?

The correct answer is Partner because Li, as the owner of a boutique marketing agency that specializes in managing Amazon Ads campaigns for creatives, functions as a partner to brands and businesses seeking expertise in advertising. This classification reflects her role in collaborating with clients to optimize their marketing strategies rather than being a direct seller or a large corporate entity. In contrast, an enterprise typically refers to large companies with extensive resources, while small and medium-sized businesses are defined by their size and operational scope; neither accurately captures Li's position as a service provider that supports other brands in their advertising efforts, making "Partner" the most appropriate designation.