It is C) as places for worship for the Sumerians because for their local religion as they worship their god in the ziggurats. Hope it helped!
IT IS C I TOOK TEST ;
Ziggurats were built in Sumer as places of worship for the city's patron deities. These towering structures served as both religious and administrative centers for the community. The answer to the question is C) As places of worship for Sumerians.
;