Which of the following is the best description of a reason the Soviet Union collapsed?

A.
Gorbachev allowed glasnost.

B.
The Star Wars defense system was successful.

C.
Gorbachev allowed political parties other than his own.

D.
A civil war broke out in the Soviet Union.

A civil war broke out.

Explanation:

A civil war happened because of political events. Then people overthrew the government.

Be sure to double check on google.  

C

Explanation:

Gorbachev allowed political parties other than his own.

australian plates collided into eurasian plates, and the himalayas formed. the andes mountain range the himalayas and the islands of japan form differently. the andes mountain range formed at the convergent boundary of an oceanic plate and continental plate.

soviet influence spread across eastern europe sharply during and after wwii. the soviet armies liberated the countries in eastern europe and occupied them from the germans as they were forced to retreat towards germany.