What were significant factors contributing to the breakup of the Soviet Union in 1991, following the reforms of Khrushchev and Gorbachev?(1 point)

Increased military spending and expansionist policies

Economic stagnation and political liberalization

Strong centralized control and suppression of dissent

Cultural isolation and promotion of traditional values

Economic stagnation and political liberalization were significant factors contributing to the breakup of the Soviet Union in 1991. Gorbachev's reform policies, such as Glasnost and Perestroika, led to greater political freedom and openness, but also exposed the economic weaknesses of the Soviet system. This combination of economic stagnation and political liberalization ultimately undermined the stability of the Soviet Union and contributed to its dissolution.