Concerns That Lobbyists Have Too Much Influence Have, Over Time

Concerns that lobbyists have too much influence have, over time, led to _________________.

A) complete, but temporary, bans of lobbyists from Congress
B) members of Congress receiving less information about policies once reforms to lessen influence passed
C) congressional and presidential campaign ads in which lobbying groups are presented as being responsible for most of the country's problems
D) adoption of legal guidelines regulating their activities