Answer: The answer looks like it can be B
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.
The answer is: A. Famous because it is the subject noun
The correct answer is B. was. Dollars are considered a singular unit here in the U.S. and thus follow the was/is rule.
