American Troops..............
If your friend is a business owner in a planned economy, then it would be the "central government" that decides how to allocate the productive resources he uses, since the government "plans" the economy as opposed to having supply and demand take place in the marketplace.
Answer: Plant domestication: Cereals such as emmer wheat, einkorn wheat and barley were among the first crops domesticated by Neolithic farming communities in the Fertile Crescent. These early farmers also domesticated lentils, chickpeas, peas and flax.