What was the significance of the Battle of Yorktown to the American Revolutionary War?

A. It was the battle that forced the British to retreat from New York

B. It was the first battle of war, and it gave the Patriots hope that they could defeat the British.

C. It was the last battle because Parliament decided against continuing the war after Cornwallis surrendered

D. It was the turning point in the war, when the Patriots realized they could attack during a snowstorm