Answer:A. Its strategic location in the middle of African, Mediterranean, and Asian trade networks.Explanation:The Kingdom of Aksum or Axum was an imperative exchanging country in northeastern Africa, ruled from roughly 100– 940 AD.
Aksum was the capital of a noteworthy sweeping realm, a kingdom that commanded the indispensable junction among Africa and Asia for right around a thousand years. The Aksumites presented a composed dialect, Ge'ez, and made another royal power and political attachment.
The source of Axum's prosperity in the fourth century CE was it's strategic location in the middle of the African, Mediterranean and Asian trade. They traded ivory, gold, glass and metal items to other Empires in order to get the goods they needed.