A responsible citizen could best participate in serving their community by A-watching campaign ads on TV before going to vote.

B-registering for the selective service when they turn 18.

C-paying their federal income taxes on time each year.

D-driving a neighbor to their polling place on election day.

D (driving a neighbor to their polling place on election day.)

Explanation:

D is the clearest example of serving your community

also got it right

- a government ruled by the people, or assembly. officials monarchy - a single ruler like a king. over time some city-states, like athens would change governments. what this means is that all the citizens voted on all the laws.