What volcanic events formed crater lake, oregon? when did they take place?

In the 1980s, more russians worked to encourage change in the government by a) establishing a new political system. b) rallying for democratic reforms. c) supporting the democratic system. d) resisting gorbachev’s reforms.

Could anything have been done through compromise to stop it, or did it have to happen?

What is the orthodox interpretation of why the cold war started