The answer is A.
Proof:
The Caddo first encountered Europeans in 1541 when the Hernando de Soto Expedition came through their lands.De Soto's force had a violent clash with one band of Caddo Indians, the Tula, near Caddo Gap, Arkansas. This event is marked by a monument that stands in the small town today.
C:
The answer is either A or D
I strongly believe the answer is C. Because they both became the richest and most powerful country.
People of the classical era found the flat, open geography of the African plains particularly well suited to herd livestock as it enabled them to keep steady amounts of live animals at one location without loosing sight of their whereabouts - b. They had difficulties growing crops on the African plains.
