I think the answer is D good luck.
Answer:
A. a time when Robespierre executed citizens for not being revolutionary enough
Explanation:
The Reign of Terror was a period during the French Revolution that involved radicals like Robespierre, who led the Committee of Public Safety
The Reign of Terror involved thousands of executions by the guillotine due to revolutionary fervor and treason accusations.
People against the Revolution, or those that weren't revolutionary enough, were executed by Robespierre and his committee.
So, the correct answer is A
There are six levels:
At the First level there was the Pharaoh
The Second level was held by the Vizier
The Third was taken by both Nobles and Priests
The Fourth with Scribes and Soldiers
The Fifth with Craftsmen
The Sixth and final stage with Farmers and Slaves