What was the primary significance of the Battle of Saratoga? A) It be

What was the primary significance of the Battle of Saratoga?

A) It began an eventually successful colonial invasion of Canada.
B) It encouraged the French to commit to an open alliance with the colonists.
C) It caused England to initiate talks for ending the war.
D) It was the bloodiest battle of the War for American Independence.

ANSWER
B