a) efforts to increase voter turnout
Step-by-step explanation:
According to Britannica “Democracy is a system of government in which laws, policies, leadership, and major undertakings of a state or other polity are directly or indirectly decided by the ‘people,’” so in this case, increasing voter turnout would help democracy as more people are participating in the system. An example of this would be the Freedom Summer 1964 during the Civil Rights movement which aimed to increase voter turnout and registering Black Americans to vote.