D. The United States benefited from investments in manufacturing
and technology.
Explanation:
The first was to
gain trade partners on favorable terms partners that could supply natural resources the United States could not, such as sugar, rubber, and coffee. The second was to establish naval bases. The third was simply to prove to the world that the United States was a great power a force other nations would have to reckon with. These three reasons explain why the United States grew into a world power.
