What Made the British Authorities Wary of Declaring War Against

What made the British authorities wary of declaring war against the French in North America in 1754?

A) Native American tribes were sure to side with the French over the British.
B) The colonists protested against the deployment of British troops in North America.
C) They believed the American colonists were incapable of cooperating in their own defense.
D) The king insisted that the colonies were not generating enough income to support a war.