Answer:
Option B)
Explanation:
The details of the excerpt best develop the central idea that Nixon's resignation is tied to the Watergate scandal because they indicate that Nixon was overly focused on winning a second term and willing to do anything to secure victory. The use of phrases such as "excessive zeal" to describe Nixon's desire to win a second election are used to show that the ex President was willing to go to further distances in order to do what he an his team thought was necessary to win an election.