Why Did the British Eventually Agree to Independence for the American

Why did the British eventually agree to independence for the American colonies, ending the Revolutionary War?

A) The British government could not afford to keep fighting a ground war in a faraway continent.
B) The British troops could not match the better-trained, better-armed American troops.
C) An uprising among the primarily Catholic German mercenary troops led to the surrender of British troops in New England.
D) The French government made a substantial payment to the British Crown to compensate for the economic losses it suffered by losing its colonies.