A. Planting corn, squash, and beans.
Planting corn, squash, and beans (known as the "Three Sisters") was a common agricultural practice shared by the peoples who spoke the Algonquian, Iroquoian, and Siouan language groups. This method of planting involved planting corn, squash, and beans together in the same field, with the beans providing nitrogen for the corn and the squash providing shade and suppressing weeds. This agricultural practice was an important part of their traditional way of life and provided a reliable source of food.