<span>D. Countries built large armies and stockpiled powerful weapons
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That depends on which historical empire you are considering when you ask. However in general an emperor serves as a figurehead of a government and absolute ruler of the military.
Answer:
Songhai
Explanation:
Under the rule of Sonni Ali, the Songhai surpassed the Malian Empire in area, wealth, and power, absorbing vast areas of the Mali Empire and reaching its greatest extent.