Which characteristic is shared by all of the European countries to which communism spread?
WWII
They were all near the Soviet Union.
They all had direct access to ocean routes.
O They were all trading partners of the Soviet Union.
O They all had fought against the Axis Powers in World
War II.

Correct answer is They were all trading partners of the Soviet Union.

Explanation:

First option is not correct as some of them, for example were far away from Soviet Union.

Second option is also not correct as most of them, except Soviet Union had no connections with the Oceans.

Third option is correct as they were all connected with Soviet Union. Trade links were the best way to do that.

Last option is not correct, as for example Hungary supported the Axis Power.

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.

the answer is the last option or letter d)