Why did Cornwallis surrender to yorktown

On October 19, 1781, British General Charles Cornwallis surrendered his army of some 8,000 men to General George Washington at Yorktown, giving up any chance of winning the Revolutionary War. ... The Franco-American siege exhausted the British army's supplies of food and ammunition.

Explanation:

1) d

2)c

3)b

4) a

5)c

6) c

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