Final answer:
The scandal associated with the Clinton administration was Whitewater, a controversy involving real estate investments that ultimately did not lead to President Clinton's impeachment. The correct answer is 'a. Whitewater.'
Step-by-step explanation:
The scandal of the Clinton administration referred to in the question is Whitewater. The Whitewater scandal was an investigation into real estate investments of Bill and Hillary Clinton and their associates in the Whitewater Development Corporation during the 1970s and 1980s. This political controversy surfaced during Clinton's presidency and led to an extended investigation, but did not result in the impeachment of President Clinton.
The other options listed, such as the Iran-Contra affair, voter fraud, and Watergate, correspond to different administrations or events. The Iran-Contra Affair involved the Reagan administration and was a scandal concerning the covert sale of missiles to Iran, with the proceeds funding Nicaraguan rebel groups. Watergate was the scandal during the Nixon administration that led to President Nixon's resignation. Voter fraud is not associated with a specific administration scandal in this context.
The correct option in the final answer is "a. Whitewater."