<span>The Nika revolt was started because justinian raised the taxes for building project and war funding, he had no allegiance with a fiction(greens or blues ), he collected taxes in brutal way, and people are being killed and places are burned down. Then in 532 riot and fire destroyed Constantinople. Justinian wanted to run away and start a new life but Theodora convinced him that it was better to die an emperor and stay living and have no one know who you are. So he stayed and rebuild many building including the Hagia Sophie.</span>
C, but B is okay too. You should be able to express why you did what you did and also evaluate on the feedback so you can compromise and decide what you want to do.
<span>A key signature is most helpful in determining the "root and the scale used" a piece of music. Other purpose of key signature is that it tells you what key to play in order to avoid accidentals. Accidentals are symbols that modifies the pitch of the note, either making it into a sharp, a flat.</span>