List 3 responsibilities that we have as American citizens?

Question

1) Citizens must VOTE
2) Citizens must obey the laws
3) Citizens must________

i don't know what is the third one
please help!!!!

Answer 1

AND
What is the name of the Principle in the Constitution that restricts the power of any one branch of the government?

Answer 2

We don't have to vote, but we do have to pay taxes and serve on juries if we are called to do so.

Answer 3

Checks and Balances

Answer 4

Thank you so much!!!

Answer 5

You're very welcome.