Which of the Following Statements About Spending by Efforts of Interest

Which of the following statements about spending by efforts of interest groups to influence government is accurate?

A) The amount of money spent on campaign contributions dwarfs all other types of spending by interest groups.
B) Despite public concerns about campaign contributions, the amount of money donated to candidates has decreased.
C) Interest groups spend billions more every cycle on lobbying than they do on campaign contributions.
D) Most of the attention is focused on campaign contributions, but interest groups spend considerably more on research and television advertising.