Final answer:
The Referendum process during the Progressive Era empowered voters to affirm or reject legislation through ballot initiatives.
Explanation:
Referendum is the Progressive Era process that gave voters the power to place legislation on the ballot for voters to either affirm or reject. This process allowed citizens to demand via petition that a law passed by the legislature be sent to voters for their approval.
Learn more about Progressive Era processes here:
https://brainly.com/question/37845723
