End of the Soviet Union

He tried to reform the politics and economy of the USSR by increasing transparency and honesty

He tried to reform politics, but not the economy

He tried to reform the economy, but not politics

He tried to reform the politics and the economy of the USSR by doubling down on the Secret Police and totalitarian tactics

Arms treaties helped to decrease the tension

Tension didn't decrease, it increased

Treaties were ignored as various nations increased their weapon stores

The army's reputation was harmed

It was seen as a sign of weakness that the USSR couldn't control Afghanistan

It created divisions between the Communist Party and the military

All of these