Astroturf Lobbying Is Sometimes Effective Because

Astroturf lobbying is sometimes effective because

A) most elected officials are older and can be fooled by technology.
B) interest groups invest huge sums of money into astroturf lobbying.
C) educated citizens understand politics best and are the most likely to participate in astroturf lobbying.
D) it sometimes involves large numbers of participants, forcing elected officials to pay attention.