Justinian was known as the emperor that never slept so B would be your answer.
1.)D
2.)A
3.)A
4.)C
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<span>Under the constitution, congress has the power to regulate elections. Congress can change the time and place of elections, as well as having the power to modify regulations.</span>
Laws greatly restricting the legal rights of free blacks and slaves were passed <span>throughout the South.</span>
A. Being assigned to noncombat roles