The combination of environmental legislation, voluntary compliance, and EPA action O a. does little to improve companies' efforts to reduce pollution. Ob. has resulted in a decrease of fines related to EPA offenses. Oc. has drastically reduced the need for legal action against offending companies. O d. is effective in convincing corporations to reduce harmful actions but has little impact on private citizens. O e. can have a positive impact on cleaning up the environment and keeping it clean