Choice D is the true statement about ancient Egyptian history. Social mobility is not impossible because slaves that can read and write can become scribes, and therefore, can save up money for their families. They can move their way up by serving the government.
Madison and his constitution writing colleagues had in mind a system in which the Senate keeps an eye on the House, while the House watches the Senate.
There are so many reasons, high taxes (especially on bread), forced military services, and the power of the higher class