Read the passage below and answer the question that follows. Known as the "Cradle of Civilization," this region was home to several early river valley societies. Located between the Tigris and Euphrates rivers, the region is known for its rich alluvial soil, which has earned it the nickname the "Fertile Crescent." Which of the following regions is discussed in the passage above? A. the Anatolian Plateau B. the Hindu Kush C. Mesopotamia D. the Khuzestan Plain Please select the best answer from the choices provided.