How was Zaire established?

A.

Hutu tribes migrated north from Rwanda, formed the state of Zaire, and declared independence.

B.

The Union of South Africa resettled many tribes in a new homeland, a state called Zaire, and gave them independence.

C.

A majority group ousted Southern Rhodesia's white minority government and renamed the country "Zaire."

D.

The Democratic Republic of the Congo's defense minister established a dictatorship and renamed the country "Zaire."