Which Statement Describes Interest Groups Such as MADD (Mothers Against

Which statement describes interest groups such as MADD (Mothers Against Drunk Driving) , the CPPA (Canadian Professional Police Association) , and the National Firearms Association?

A) They have little or no influence on law reform.
B) They are prohibited by law from attempting to influence legislation.
C) They are actively involved in efforts to influence law reform.
D) They have been largely ineffective in influencing law reform.