The purpose of the British Declaratory Act of 1766 was to

Aproclaim the right of Britain to pass laws regulating the colonies.
Brepeal the Stamp Act.
Cestablish British fur-trading rights with the Indians.
Dplace taxes on all British goods imported into the colonies.

Verified Answer :

The main purpose of the British Declaratory Act of 1766 was to "a. proclaim the right of Britain to pass laws regulating the colonies," since it was clear that the colonists were not respecting Britain's right to tax them.