Washington Decided to Attack Cornwallis at Yorktown,because Cornwallis Was

Washington decided to attack Cornwallis at Yorktown,because Cornwallis was

A) waiting for a large number of troops to join him, which would have made it harder for the patriots to win.
B) weakened by the latest Royal defeat two weeks before.
C) stranded at the tip of the peninsula and Washington saw a chance to trap him there.
D) rumored to be headed out to meet the patriot forces at a place that would put Washington at a significant disadvantage.
E) planning to rendezvous with British naval forces, which would have made them too powerful for Washington's land forces.