Answer:
No cartoon but, basically, the Soviet Union collapsed from an economic standpoint, and could ill-afford to support the satellite countries surrounding its empire. Gorbachov, the Soviet premiere was pushing for more openness within the Soviet Union which created greater freedoms for the Russian population. It all became a growing snowball, which ended with the break-up of the USSR.
Explanation:
It think it is C because it was something very difficult to battle :)
