Resigned and the soviet union ceased to exist on christmas day in 1991.

josef stalin

boris yeltsin

leonid brezhnev

mikhail gorbachev

Mikhail Gorbachev

Explanation:

The resignation took place on the Christmas of 1991, as Mikhail Gorbachev announced the decision to cease as head of state and to dismember the Soviet Union, declaring a consitution of the Russian Federation.

The other USSR member states already had begun to form separate republics and a Commonwealth . The CIS stands for the countries resulting from this.

The constitution of a Russian Federation was meant to incorporate the urgent changes in the economy, the politics ,  and the modernization of infrastructures across the country. Gorbachev opened doors to colaboration with the west. that ended the Cold war politics- Furthermore he sought a market economy based on the principles of liberalism.

Among other changes were the reduction in the nuclear war  heads from the arms race.

cur

explanation:

cancer

the correct statement is letter a.   according to the mandate of heaven, kings were considered godlike beings, so they could do as they .

the mandate of heaven is a chinese political and religious ideology used since ancient times to justify the rule of the king or emperor of china, that has been in place since the zhou until the dynasty system ended. it has been created to justify the zhou as the main power of the region. in order to keep harmony, the ruler has to make what he wants and what people want. he had to make good choices to satisfy the people and then they will be happy and keep you in power.