Who was Esteban Moor?

DescriptionMustafa Azemmouri, better known by his slave name Estevanico, was a Moroccan explorer from Azemmour, servant in Spain, who became the first African explorer of North America. He has been referred to as "the first great African man in America". He is known as Esteban de Dorantes, Estebanico, and Esteban the Moor

The answer is d.  the north had organized schools, whereas the south had few organized schools.