Which of the following summarizes the reasons Egypt transitioned from the Old Kingdom to the Middle Kingdom to the New Kingdom? A. constant military expansion and blending of cultures

B. pharaohs challenged by nobles from within and outside invaders

C. the Kingdom of Kush’s subtle strategy and rise to power

D. Tutankhamen’s death and a treaty with the Hittites

Which statements describe sustainable development? multiple answer choice -fishing does not remove more fish from water systems than can be replaced by the number of fish that will be born to replace them. -sustainable development is development that is designed to improve the economic conditions in less-developed countries. -sustainable development is mainly a regional issue. -sustainable development means water is used at a rate that won't reduce the amount available for future use. - sustainable development policies only need to be concerned with environmental protection. - trees cannot be cut down faster than the number that will be replaced by new growth.