Which minimum voting requirement is both mandated and protected at the federal level?

you have to be 18 to vote and you can only vote once per election

Explanation:

a more perfect union: the creation of the u.s. constitution. the vote was unanimous. saddled with this weak government, the states were on the brink of not to lend a hand to any proceeding that seemed to pose a threat to that protection. delegates from virginia and other large states demanded that voting in

the correct answer is b