What important social and cultural development came to east africa and spread to the interior cities through migrants and trade?
the approval of slavery
the expansion of communities into kingdoms
the integration of the swahili language
the rise of christianity

what are the options ?

explanation:

aids

some women in the middle and upper classes worked as doctors, government officials, or priestesses. both women and men enjoyed a better quality of life the higher they were on the social pyramid. the egyptians believed that their class system created a stable, well-ordered society. each group had its own role to play.

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.