Terry McMillan,employed by a Manufacturer of Small Appliances,offers Assistance to Retailers

Terry McMillan,employed by a manufacturer of small appliances,offers assistance to retailers in such areas as credit policies,pricing,display and store layout.He also collects information regarding acceptance of his firm's products.He is performing the duties of a/an:

A) detail salesperson.
B) inside salesperson.
C) outside salesperson.
D) sales engineer.
E) missionary salesperson.