Not to rush but plz hurry! Which actions by the Belgian government contributed to the ethnic tension in Rwanda?

A.
They supported a revolt by black Africans over Arab Muslims.
B.
They encouraged white supremacy over black Africans under the system of apartheid.
C.
They promoted a Hutu minority over a Tutsi majority and encouraged a Hutu revolt.
D.
They promoted a Tutsi minority over a Hutu majority and encouraged a Tutsi revolt.