The last answer, "Renaissance artists made figures look solid and lifelike by using light and shadow; figures in medieval art look flat," is the correct answer.
They want you to know what the narrator means
Answer:
The period known as the reconstruction started after the civil war. Abraham Lincoln planned for the reconstruction of the South during the war since the Union occupied a big area there. He did not want the nation to be in turmoil for long and wanted to unite it and get it on its feet as quickly as possible.
Answer: If it's in your opinion, then no. But if it's somebody else's opinion that you don't agree with, then you do have to cite your sources.
I hope that makes sense!
The ancient Greeks came up with the idea of representation for the people. Although it is not like our modern ideas of equal representation for all, democracy still holds its roots in ancient Greece.