Answer please!
what were some of the largest factors to the collapse of the soviet union? select all that apply

a. the stagnation of the economy under strict governmental control

b. the introduction of private ownership and governmental reforms that allowed for political opponents to gain power from the soviet government

c. the creation of the warsaw council that rested power away from moscow and created instability in the government due to fractured leadership

d. the lack of conflicts caused the economy that was supported by the military spending collapsed and caused the u.s.s.r to fracture