Answer:
D. to vote at all levels
Explanation:
The most important voluntary action citizens can take in a democratic society at the local, state and national levels is to vote at all levels. This means choosing eligible representatives that would represent their interest whether in the congress, house or parliament.
Voting at all levels matters. People engage with their governments through voting. They elect city council members, legislators,mayors, members of congress, governors etc are all chosen by popular vote except the president who is chosen by electoral college, which is largely determined by votes of individuals in their home state.
