Which of the Following Statements Is True of a Product

Which of the following statements is true of a product sales-force structure?

A) A product sales-force structure is characterized by specialization along product lines.
B) A product sales-force structure is used when a company has only one product line.
C) A product sales-force structure requires every salesperson to be an expert in all the product categories of the company.
D) A product sales-force structure organizes the sales force along customer or industry lines.
E) A product sales-force structure uses a single sales force across different product lines.