What was the overall impact of perestroika and glasnost on the cold war?
(a) they strengthened the communist system in eastern europe.
(b) they brought an end to the strategic arms race between the united
states and soviet union.
(c) they lead to the collapse of communist regimes in eastern
europe.
(d) they led to the salt i and ii agreements.
(e) they resulted in the iran-contra aff air.