Answer :
When citizens are unhappy with a specific piece of legislation they want removed or struck down, they can call a referendum, which puts the issue to a direct vote by the citizens.
The correct answer is: Referendum.
The referendum is a citizen participation mechanism that summons the people to approve or reject a draft legal rule, or repeal or not an existing rule.
The purpose of a referendum is to authorize and execute projects of interest to the community, that is, the referendum is an instance to which the people can turn in case the corporation in charge of approving the law does not accept it or simply let expire the term to discuss it and approve it.