Which political reform gave people the power to put a proposed law on the ballot?

referendum

initiative

direct primary

recall

The correct answer is "initiative"

Explanation:

According to political terms, an initiative is a process that enables citizens to bypass their state legislature by placing proposed statutes. Depending on the U. S. state government, an initiative gives more power to the people, enabling them to place constitutional amendments on the ballot. There are direct and indirect initiatives, the first are qualify directly to the ballot and for the indirect initiatives the proposal should be submitted to the legislature first.

initiative is the answer to this question