Lobbyists Contact Executive Branch Bureaucrats Because

Lobbyists contact executive branch bureaucrats because:

A) doing so provides them with vital access to the president.
B) the executive branch determines whether laws are constitutional or not.
C) executive branch bureaucrats provide lobbyists with most of their policy research.
D) executive branch bureaucrats create the federal budget, which ultimately affects virtually every interest group.
E) executive branch bureaucrats change the ways regulations are written and policies are implemented.