How did Darius strengthen the Persian Empire's economy?

(1 point)
Responses

by increasing tribute

by increasing tribute

by taxing the Great Royal Road

by taxing the Great Royal Road

by wiping out Zoroastrianism

by wiping out Zoroastrianism

by introducing a common currency

by introducing a common currency

1 answer

Darius strengthened the Persian Empire's economy by introducing a common currency. This helped facilitate trade and create a more unified economic system across the vast empire.