I’ll give you all that I know
Censure.
Contested Senate Elections.
Declarations of War.
Expulsion.
Filibusters and Cloture.
Impeachment.
Investigations.
Nominations.
The answer is: B.drained their economic resources
During its military build-up, soviet union allocate most of their government budget to military and they also require the manufacturers in its territory to focus their operation in military weapons , vehicles, and supplies.
This caused the economic resources in soviet unions to be drained and the needs for goods that unrelated to military became abandoned.
Mars u can live in just like earth