Alfonso I reshaped Kongo by?

A. Unifying the states of West Africa
B. Banning the slave trade in Kongo
C. Converting to Islam
D. Making Catholicism the state religion and allowing Portuguese to buy more enslaved people

D. Making Catholicism the state religion and allowing Portuguese to buy more enslaved people

The correct answer is D. Making Catholicism the state religion and allowing Portuguese to buy more enslaved people.