Which accurately describes events of ancient nubia that impacted its culture and way of life?

a)the byzantine empire conquered nubia, resulting in christianity as the nation’s religion.
b)egypt conquered nubia around 1500 bc, resulting in roughly 450 years of occupation.

c)the kingdom of ghana conquered nubia, increasing ghana’s gold supply and trade.

d) the arab empire conquered nubia, resulting in islam becoming the nation’s religion.