How was Darius able to maintain control of such a large empire? Select the two correct answers

(1 point)
He forced provinces to pay tributes they were unable to afford.
• He gave local rulers some control over their govemment.
© He established a different currency for each of the provinces.
© He adopted a monotheistic religion.
• He funded the construction of roads across his empire.

The two correct answers are:

- He gave local rulers some control over their government.
- He funded the construction of roads across his empire.