Your answer will be b multistoried houses.
Timeline of Ancient Mesopotamian civilization: c. 5000-3500<span> BCE: The first city-states gradually develop in southern Mesopotamia. This is the achievement of the Sumerian people. c. </span>3500<span>: Writing begins to be developed.</span>
The most accurate answer appears to be B, however I’m uncertain if they built their religious shrines/temples underground.
The first one medicare provides health care for older ppl
