The fourth alternative is correct (D).
The government of President Bill Clinton (1993-2001) was marked by some scandals, being the main scandal of sexual nature, that surrendered to him an impeachent request that was not approved by the congress.
However, the Watergate scandal occurred during the administration of President Richard Nixon and culminated in his resignation. At the time, President Richard Nixon was the most controversial target of a series of investigations that scrutinized the illegal operations of his government and the barbaric negotiations that occurred in the political backstory of the time.
