The creek, chicksaw, and cherokee relied heavily upon farming

corn and beans

Explanation:

The Creek, Chickasaw, and Cherokee tribes are part of the so called ''Five Civilized Tribes''. These tribes occupied the southeastern part of now the United States, and they were agrarian societies. The majority of the food that these tribes used was cultivated by them, as they were heavily engaged in farming, thus being able to create a surplus of food that would last them for the whole year. The crops that were farmed the most were the corn and the beans. Both of them were native plants, and both of them are highly nutritional, so it is no wonder that these two crops where the preferred ones by these people. The potential of the corn and the beans where easily recognized by the Europeans, so once they spread it around, they some became very popular and used crops around big portion of the world.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

the answer is d. give brainliest if right.

ps is this 7th grade civics?