Answer:
B. Americans believed that Nixon's resignation left a government of untrustworthy leaders.
Step-by-step explanation:
Richard Nixon performed his resignation in 1974, after the Watergate scandal and the risk of legal accusation, being the first president to leave office in the history of the United States. Prior to his resignation, his public image had become really unfavorable, so him leaving office was the last factor to ruin his reputation and place the White House in a position of distrust.