Sagot :
I think it is a and b.Since I learned about this last week.
Answers:
B. The empire extended from the eastern edge of Europe to the western rim of the Indus River valley.
D. Cyrus oversaw a period of great peace and prosperity throughout his empire.
Explanation:
The Persian Empire, was established by Cyrus the Great around 550 B.C. It wound up one of the biggest domains ever, extending from Europe's Balkan Peninsula in the West to India's Indus Valley in the East. This dynasty was a worldwide center point of culture, religion, science, art and innovation for over 200 years.