During the american revolution, who is credited with training the soldiers at valley forge
and creating the model for training and discipline throughout the continental army?

a: friedrich von steuben, a prussian military commander and friend of benjamin franklin.
b: george washington, commander in chief of the constitutional army throughout the war.
c: george clinton, governor of new york, from whom washington requested a for the army at valley forge.
d: marquis de lafayette, a french major general who served the constitutional army because he believed in the american cause.