- All elective officers were effectively "tried" at the end of their term
This lets the emperor control contact with Europeans. So, when the trading season ended the foreigners were required to sail away.
Answer: 85 years
Explanation: Archaeologists believe Egypt's large pyramids are the work of the Old Kingdom society that rose to prominence in the Nile Valley after 3000 B.C. Historical analysis tells us that the Egyptians built the Giza Pyramids in a span of 85 years between 2589 and 2504 BC.
i'm pretty sure its D, but, if not, then sorry....