Answer:
Option B: Bill is a staff manager
Explanation:
Bill manages the quality department. His people check parts made by the production departments to assure all specifications are met. Bill is - a staff manager.
Other duties of staff managers are :
He is in charge person that consumes revenue
He guides the line manager.
He helps to take decisions.
He assists line persons and help the top management in various business activities.
He also takes care of the line management and top management. Etc.