Sabotage is the best synonym for the word subversion, as it is used in this excerpt from President John F. Kennedy's Inaugural Address. Hence, option D is correct.
John F. Kennedy urged his countryman to join him in the fight to end the Cold War and free America.
He believed that democracy would enable people to participate in the fight, thus he intends to motivate people to forego their support.
He had delivered an excellent speech that had motivated the populace. Kennedy asserts that regardless of the dominant entity that rises, there will be no division in the world.
Thus, option D is correct.
For more details about John F. Kennedy's inaugural speech effective, click here:
https://brainly.com/question/27674043
#SPJ1