The quantity at the equilibrium point
Answer:
C. Xerxes
Explanation:
Xerxes I, also known as Xerxes the Great, was the fifth Great King of the Achaemenid Empire (486-465 BC), son of Darius I and Atosa, daughter of Cyrus II the Great. Xerxes was designated successor to Darius I ahead of all his half brothers, older than him, and who were born before Darius ascended the throne. After being crowned in October of 486 a. C., it was victoriously faced to a rebellion in the submitted Egypt, that began in 486 a. C .. He left his brother Aquemenes as a satrap of that region, over which he exercised a repressive control.
Poll taxes, literacy tests, and grandfather clause
Kilwa had seized the port of Sofala, which was a trading center for gold mined inland. By controlling Sofala, Kilwa was able to con- trol the overseas trade of gold from southern Africa. As a result, Kilwa became the wealthiest, most powerful coastal city-state.