The Partnering for Success feature in Chapter 8 focuses on buying groups, and recommends that small businesses seek out buying groups to participate in. What is a "buying group" in the context of the feature

What is a sales lead? a. an employee on the customer service team who deals with existing customers b. a sales person who works on a residual commission structure c. an expert in maslow's hierarchy of needs d. a potential customer who has shown interest in the company's product