Answer:
The answer is below
Step-by-step explanation:
Containment in the context of post-WWII international diplomacy on the part of the United States referred to option D "the policy by which the United States committed itself to prevent any further expansion of Soviet power."
This is to check and halt the spread of principle of the communist style of governance that is stretching from the Soviet Union to other eastern European countries, and later the world at large.