How Did the Increasingly Global Nature of the Revolutionary War

How did the increasingly global nature of the Revolutionary War after 1780 pose a threat to British imperial interests?

A) With both the French and the Spanish in the war, Britain feared for its West Indies colonies.
B) With resistance to British rule growing in India, Britain worried about spreading its forces too thin.
C) France became increasingly interested in regaining its colonies in the French Crescent, which ran from Canada to Louisiana.
D) Britain worried that Spain would launch a naval blockade of the Atlantic coastline.