$[$geographical organization$]$ A geographical sales organization would not$]$ be the best structure if

A$)$ a firm is trying to reduce duplication of selling effort.

B$)$ different buyers have similar needs.

C$)$ a firm is trying to minimize travel time.

D$)$ a firm's products or customers require specialized knowledge.

E$)$ there is a need to increase the number of salespersons in the salesforce.