Question

What best describes the governments of the United States and the Soviet Union after World War II?
A. The United States had a single-party system, and the Soviet Union had a democratic system.
B. Both the United States and the Soviet Union had a democratic system.
C. Both the United States and the Soviet Union had a single-party system.
D. The United States had a democratic system, and the Soviet Union had a single-party system.

Answer 1

United States had (and still does) a democratic system , the Soviet Union had a communist party (Joseph Stalin) So  Answer    D

Answer 2

D. The United States had a democratic system and the Soviet Union had a single-party system