Independently, write a response (at least a paragraph) to the question in this box. Cite evidence from the article “Time Trip: Sudan's Civil War" to support your thinking. Question: "How does Salva's story relate to this article?"​

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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.