What is the correct alternative about the crisis of the Soviet Union in the 1980s? I. The perestroika was a policy of economic restructuring that ...

What is the correct alternative about the crisis of the Soviet Union in the 1980s?

I. The perestroika was a policy of economic restructuring that aimed to modernize the Soviet economy and make it more efficient.
II. The glasnost was a policy of political openness that allowed greater freedom of expression and the press in the Soviet Union.
III. The election of Mikhail Gorbachev as Secretary General of the Communist Party represented a profound change in Soviet society.
IV. The crisis of the Soviet Union in the 1980s was caused by external factors, such as the arms race with the United States.
V. The policies of perestroika and glasnost were successful in solving the economic and political problems of the Soviet Union.
A) I, II and III are correct.
B) II, III and IV are correct.
C) III and V are correct.
D) I, II, III and IV are correct.
E) None of the above is correct.