Either communist oppression or Germany's strength. I'm not sure.
C- The Nina if i am correct
The 26th amendment expanded the right to vote. It made it so that you had to be 18 or older to vote.
The correct answer is letter C.
Explanation: In this quote <em>"The American continents . . . are henceforth not to be considered as subjects for future colonization by any European powers."</em>
The answer it will be The United States had become the dominant world power.