Answer:
new york city :)
Explanation:
new york city was (and still is) the powerhouse of the us
It’s definitely not A and B is a no because highlighting /most/ of your text doesn’t help point out the key points or quotes. Determining the authors purpose helps to understand what your reading so I would pick C.
If your choices are the following:
A. Both isolation and omnipotence are impossible to achieve.
B. The United States will someday be able to balance isolation and omnipotence.
C. It was inevitable that omnipotence would replace isolation.
D. The United States missed a chance to be separate from Europe.
Then the answer is A.