How did the nations shaded in red differ from nations shaded in blue

a) communist governments were established in the areas in red, while the countries in the blue held free elections.

b) communist governments were established in the blue regions of europe, while the regions in red were democratic.

c) the united states had a greater influence on the area highlighted in red than on the area in blue.

d) the area in red had a higher standard of living than the area in blue.