Answer:
The Answer is A
Explanation:
I had this question and the correct answer was A
Mao declared the Revolution over in 1969, but the Revolution's active phase would last until at least 1971, when Lin Biao, accused of a botched coup against Mao, fled and died in a plane crash.
Reign of Terror also known as the Great Fear (La Grande Peur), although it didn't start until September 1793. I couldn't find anything else to fit that time frame.