Question

Which of these following groups of people who may introduce a bill in the House of Representatives?

A. employees of federal agencies

B. lobbyists for special interest groups

C. committee staff and aides

D. members of the House of Representatives

Answer 1

Any member in the House of Representatives can introduce a bill at any time.However the House is in session by simply placing it in the hopper.Hopper is at the side of the Clerk's desk in the House Chamber.
So the best answer is : 

D. members of the House of Representatives