Containment, the policy led to the US to become the world's protector against the communist expansion.
Answer: Option B
Step-by-step explanation:
When the Red Army marched on Federal Republic of Germany, it quickly absorbed the close nations' Estonia, Latvia, and Lietuva into the Russia. before long communist forces dominated the governments of Balkan country and Balkan nation.
By the autumn of 1945, it had been clear that the Soviet-backed metropolis regime had complete management of European nation, violating the metropolis promise of free and unbound elections there.
It had been solely a matter of time before Republic of Czechoslovakia and Hungary drop into the Soviet orbit. Yugoslavia Montenegro (European country) had an freelance communist leader named Marshal Tito.