Answer:
Most of the Caddo historically lived in the Piney Woods ecoregion of the United States, divided among the state regions of East Texas, southern Arkansas, western Louisiana, and southeastern Oklahoma. This region extends up to the foothills of the Ozarks.
Languages spoken: Caddo language
Explanation:
Answer: A. The size of the empire increased as a result of the trajan's conquests.
Explanation: This is because Trajan conquered the region of Dacia, Nabataean kingdom in Arabia, and more. These places were added to the empire as a result of the size of the empire increasing.
I also did this test question so trust me.
Mein Kampf. Hope this helps :)