What is a requirement of all citizens in the United States?

Everyone must register with the Selective Service System.

Everyone must be available to serve on a jury in response to a summons.

Everyone must cast a vote in all municipal, state, and federal elections.

Everyone must volunteer for community service.

The correct answer everyone must be available to serve on a jury in response to a summons.

Only males have to enroll in the Selective Service System but women do not need to sign up.

Voting is something that 18 year old citizens have the abiltity to but are not required by law to vote.

There is no legal requirement for citizens to complete community service.

On e2020 its everyone must be available to serve on a jury in response to a summons.