Question

By the end of World War II, the United States had become a world superpower Which statement makes a proper inference about the idea in the sentence?
A. World War II was a short war.
B. The United States is a large nation.
C. The United States military has four branches.
D. The United States was on the winning side of World War II.

Answer 1

It is safe to assume the answer is D. because if the United States was not on the winning side of the war then they would not be considered a 'world superpower'.

Answer 2

Ya it's D. Because until Germany and Japan were, they were the world superpowers. And if they would've won the war, they would've remained superpowers