Which of the following BEST describes why Africans could have sold other Africans into slavery? a. They wanted slaves to convert to Islam or Christianity

b. They had extra slaves that they did not need amd decided to trade them

c. They thought of themselves in terms of tribal groups, such as Edo or Songhai, not as Africans

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.