The mound builders of the Ohio and Mississippi valley areas had structures that . A. had temples
B. had burial chambers
C. resembled stone pyramids
D. all of the above

D. all of the above

Explanation:

A. The Mississippian period (1000 to 1700 A.D.) saw a resurgence of mound-building across much of the southeastern United States. Most Mississippian mounds are rectangular, flat-topped earthen platforms upon which temples or residences of chiefs were erected.

B. Mound Builders Name was given to the Native North Americans responsible for groups of ancient earth mounds found in the Ohio and Mississippi river valleys. The mounds contain skeletons or ashes with buried ceremonial objects in burial chambers.

C. The namesake cultural trait of the Mound Builders was the building of mounds and other earthworks. These burial and ceremonial structures were typically flat-topped pyramids or platform mounds, flat-topped or rounded cones, elongated ridges, and sometimes a variety of other forms.

the answer would be logic.

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