A Main Difference Between Iron Triangles and Issue Networks Is

A main difference between iron triangles and issue networks is that

A) an iron triangle includes members of the legislative,executive,and judicial branches,while issue networks bypass the judicial branch.
B) issue networks involve a stable group of bureaucrats,legislators,and lobbyists,while iron triangles exclude lobbyists in an attempt to reach impartial decisions.
C) issue networks are generally less stable than iron triangles,in that the members of an issue network may change as the issue develops.
D) issue networks,being less formal,rely on outside lobbying only,while iron triangles use inside lobbying only.
E) All these answers are correct.