Answer:
A : Soviet influences spread across Eastern Europe during and after WW2
Step-by-step explanation:
This shows a large proportion of Eastern Europe under partial or full control from the USSR. To fully understand this, you require some contextual information. During WW2 Hitler decided to turn on Stalin and misjudged the amount of time it would take to capture the USSR. This meant that during Winter the poorly equipped German soldiers were unable to fight as well as the Russians in the freezing cold temperatures. Therefore Russia began to push Germany from the East. When this happened the USSR entered many countries on the Eastern block. In this peace conferences after WW2, the USSR refused to allow countries on the Easter block establish a democracy and consequently most became communist.