In each dropdown next to the following terms, select the identifying letter of its best description

A.	Incurs costs without directly yielding revenues.
B.	Provides information used to evaluate the performance of a department.
C.	Holds manager responsible for revenues, costs, and investments.
D.	Engages directly in manufacturing or in making sales directly to customers.
E.	Does not directly manufacture products but contributes to profitability of the entire company.
F.	Incurs costs and also generates revenues.
G.	Provides information used to evaluate the performance of a department manager.

- cost center = ? - investment center = ? - departmental accounting system = ? - operating department = ? - profit center = ? - responsibility accounting system = ? - service department = ?