The answer is d. Casablanca
This technique entails that community members execute various chores. Job specialization splits a community's labor into distinct tasks and allocates these jobs to various people. Job specialization results in increased competency as well as efficiency and production. As a result of the Neolithic Revolution's food surplus and population rise, job specialization developed.
C. Europe has a coastal location and many navigable rivers.
This geography allows for easy trade and commerce through commercial ships and boats.