"The Etowah Indian Mounds Historic Site consists of six mounds, three of which are clearly visible: the Great Temple Mound, Lesser Temple Mound, and Mortuary Mound. The Great Temple Mound towered over the community and served as a platform for the home of the priest-chief. Situated between the Great Temple Mound and the Etowah River, the Lesser Temple Mound was originally shaped as a square. Generations of farming softened the edges of the mound, leaving its current, rounded form. The Mortuary Mound is the only mound to have been fully excavated and replaced by a reconstruction. The burial sites and associated artifacts that were discovered within are protected by the Native American Graves and Repatriation Act (NAGPRA) and their welfare governed by the modern-day Muscogee (Creek) people."

“Etowah Mounds Virtual Field Trip.” GPB
Which factor best explains why Native Americans were able to make permanent settlements that included features like the Etowah Mounds?
A
.

Native Americans began to cultivate plants for food
B.

Native Americans began to create more complex tools and pottery
C.

Native Americans discovered alternate food sources, such as shellfish
D
.

Native Americans wanted to band together in large groups for protection

A.

Native Americans began to cultivate plants for food