Correct answers that were part of ancient Egyptian civilization are: B. civilization called "the gift of the Nile". C. a form of picture writing called hieroglyphics.
A greek historian called Egypt "the gift of the Nile" because the Nile's annual flooding and resulting depositing of fertile silt permitted Egyptian civilization to survive and flourish.
Hieroglyphics is a picture writing developed in 3000 B.C. This was a very complicated way of writing. It could be written in any direction.
It was within the rights of the people and a necessity to, overthrow their government if it became too tyrannical or the system was too weak to handle crises.