The committees of correspondence were formed to increase communication between
a. the different colonies
b. colonists and the british parliament
c. british soldiers and king george iii
d. colonists and native american allies

A is the correct option.

Explanation:

The committees of Correspondence were formed to serve as a means for maintaining communication among the colonies during the revolutionary war. The earliest committee was formed in Boston(1764) and New York also formed a committee to keep the other colonies notified about its resistance to Stamp Act.

These committees were the first institutions for maintaining to stay updated about other colonies especially when their relations with the Crown was rocky. The committees helped to forge a sense of solidarity among the colonies.

the answer is definitley b!