Which of the following is a reason for the collapse of the Soviet Union?

Responses

The Soviet Union put all its resources on building the military.

The Soviet Union put all its resources on building the military. - not selected, this is the correct answer

The Soviet Union allowed too much freedom of expression.

The Soviet Union allowed too much freedom of expression. - no response given

The Soviet Union reduced its control of the economy.

The Soviet Union reduced its control of the economy. - incorrect

The Soviet Union focused on exporting natural resource

The Soviet Union focused on exporting natural resources. - incorrect