The capture of Iwo Jima and the firebombing of Tokyo. b.) The U.S. concession that he would remain in power and the fear of the atomic bomb.
The Answer is A. I hope this helps you out.
"They were radical and ultra-democratic, and they completely supported the new republic and the abolition of the monarchy. The Montagnards were composed primarily of the Jacobins and the Cordeliers. The Jacobins, led by Maximilien de Robespierre, longed for a strong, centralized government with economic power."
Source: study.com
The Great Dust Bowl
hope this helps