Which of the Following Has Congress NOT Done in Recent

Which of the following has Congress NOT done in recent years in order to limit the influence of interest groups?

A) limited the size of gifts to its own members from lobbyists and interest groups
B) banned the practice of honoraria for giving speeches
C) prohibited lobbyists from paying for most meals, trips, and parties for members of Congress
D) broadened the definition of people and organizations that must register as lobbyists
E) outlawed all contact between lobbyists and members of Congress during legislative sessions