Correct answer choice is :
D) It persuaded other nations to ally themselves with the American colonists.
Step-by-step explanation:
The turning point of the American Revolution. It was very significant because it established the French to give the U.S. military support. It raised American spirits, stopped the British threat in New England by taking control of the Hudson River, and, most importantly, showed the French that the Americans had the potential to defeat their enemy, Great Britain.