In What Situation Is a Complex Sales Force Structure Used

In what situation is a complex sales force structure used?

A) when a company sells a narrow variety of products to few types of customers over a broad geographic area
B) when a company sells a wide variety of products to many types of customers over a broad geographic area
C) when a company sells a wide variety of products to many types of customers over a small geographic area
D) when a company sells a wide variety of products to few types of customers over a small geographic area
E) when a company sells a narrow variety of products to many types of customers over a small geographic area