Final answer:
Job specialization in ancient Egypt benefited the economy through increased agricultural production, improved social structure, and enhanced cultural diversity. The correct option is D.
Step-by-step explanation:
Job specialization (people having different jobs) benefited the Egyptian economy in several ways. First, it increased agricultural production because individuals could focus on specific farming tasks, such as planting or harvesting, which improved efficiency and output.
Second, it improved social structure by creating different roles and responsibilities for individuals, leading to a more organized and structured society. Lastly, it enhanced cultural diversity as different industries emerged, fostering innovation, trade, and the exchange of goods and ideas. Hence, D is the correct option.