If you did means it would be past tense. If you do it means you’re doing it in the moment. AKA present tense
I would say D but I could be wrong
What do you mean by this question?
The conflict between concience and law is resolved when Creon is punished for acting according to the law and not the conscience of his wise advisors. The resolutions reveals a powerful theme: Divine authority resides in the conscience and is to be regarded as superior to human law. The theme sheds light on the value of the ancient Greeks placed in the power of the gods and an individual's conscience.
I think the main reason why the Great Wall was rebuilt in the fourteenth century is a will to keep out the Mongolian invaders from the north (answer B). It took place during the Ming dynasty which had quite a big problems with the invasions before.