Evidence Indicates That PAC Contributions Do Not Affect How Members

Evidence indicates that PAC contributions do not affect how members of Congress vote because

A) to do so would constitute bribery.
B) the media would expose any such impropriety.
C) most members vote by their general ideological outlook.
D) PACs cannot contact members after donating money to their campaigns.
E) rules and regulations demand high ethical standards of members of Congress.