A channel that includes both a manufacturers' agent and an industrial distributor is appropriate under which of the following circumstances?
a. The product being sold is relatively inexpensive and easy-to-use.
b. The manufacturer's product is expensive with a lot of specific technical detail.
c. The manufacturer's sales force is available to assist the agents and distributors.
d. The producer wants to cover a large geographic area, but has no sales force.
e. They are part of a contractual vertical marketing system.
Answer: d. The producer wants to cover a large geographic area, but has no sales force.