The Mexican War happened in 1850 until 1859
A congress and state legislatures have pursued constitutional
The Vietnam War was part of the Cold War for it was supposed to try to stop the flow of communism to the rest of the world it was also known as the domino affect.
Answer:
It is A
Explanation:
The definition of protectorate is: a state that is controlled and protected by another.
Also using what we know we can take out D because as it says they are not involved in daily policy making so they cant be directly controlling them. B is out because in the clues it never mentions anything about how they rule over multiple places, and C could work but it is a sphere of <em>influence</em> that means that they wouldn't <em>have</em> to answer to them.