Plz hurry it's
which statement accurately describes events in the revolutionary war?

a. the colonists launched an offensive at valley forge that convinced king george iii to grant them independence.

b. the american victory at saratoga convinced france to join the war on the colonists' side.

c. thomas paine led american forces to a decisive victory at fort ticonderoga.

d. the battle of yorktown was a british victory that gave them control of the southern colonies.