A reason the Intolerable Acts of 1774 angered colonists was that they
added new taxes on colonial goods.
prevented all trade in the colonies.
required colonists to house British soldiers.
kept people from moving to other colonies.

required colonists to house British soldiers

Explanation:

the taxes were already a thing in the '60s so this isn't the best option. Also, when the colonies broke away from Britain they already addressed the taxes as "no taxation without representation" so that issue had been resolved, if you will. Then, in the constitution, we have an amendment that is specifically for this which proves that this was a big concern for them (:

A. Added new taxes on colonial goods.

Explanation: Other answer is wrong as of Aug 4 21, just did the test.

the answer is b, encourage free trade

i would say b. research typically uses a variety of sources