I believe it is the Tigris-Euphrates river valley
Organic food in the US now constitutes 2 precent of the total food production.
The Reign Of Terror was Robespierre’s system of killing ANYONE with anti-revolution acts. He even had his closest teammate, George Danton, beheaded. This was caused by the Third Estate wanting equality with the nobles and clergy. Although, after the French Revolution, Napoleon took over and turned France into an empire. Based on this information, the best answer would be C.