The correct answer is B. A pardon
Step-by-step explanation
A pardon in politics is the act of absolution of the crimes committed by any politician. This means he or she is exempted from any type of sentence or sanction. In the case of the United States and Richard Nixon who, as president, committed a crime by spying on calls to the opposition party in a scandal known as Watergate, when this scandal was revealed Nixon was forced to resign and in his replacement, the presidency was occupied by Gerald Ford who gave the pardon to Nixon causing great controversy nationally and internationally. So, the correct answer is B. Pardon