Your answer would be:
US citizens are required to (options not shown). (Voting) is a privilege that only US citizens can exercise, but it is not required.
hope this helps :)
Answer:
Self-defining memories are encoded with details that explain what was going on in your life at the time. ... You can describe, in vivid detail, that self-defining moment
Explanation:
Nucleus is the cell structure contains informations needed for protein synthesis
