WILL GIVE BRAINLIEST What was a contribution of Darius I?

He expanded the Persian Empire into Central Asia and Greece.
He overthrew the Median Empire and founded the Persian Empire.
He led the Persian army that beat the Greeks at the Battle of Thermopylae.
He commanded the Persian navy against the Greeks in the Battle of Salamis.

A. He expanded the Persian Empire into Central Asia and Greece.

Explanation:

Sorry for late answer but I was trying to see if it was the correct answer and it was

wealthy plebeians became part of the roman nobility. however, despite changes in the laws, the patricians always held a majority of the wealth and power in ancient rome. a third social class in roman society was the slaves. around one third of the people living in rome were slaves.

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the united states didn't wanted to get involve with other countries probelms