Answer:
d. Were greatly outnumbered by the British on the continent.
Explanation:
It is true that the amount of British on the continent at that time was higher that the one of French, but the help of France in this historical event was really important.
France started its involvemente in the American Revolutionary War in 1775 when they supplied to the Continental Army in a secret way.
It is also important to remember that France was a rival of the British Empire.