Answer:
Rich land of cotton plantation
Jamestown colony was actually an English settlement funded by a private endeavor in Virginia and the investors were asked to locate gold and a sea route to the Pacific Ocean.
The problems which they faced were the friendly ties with the natives which were not satisfactory, Food shortage and water contamination. This lead to the digging up of many wells and gradually brought famine and drought.
Africans were oppressed and were given meager opportunities by the natives. Slavery lingered and they started tobacco plantations for their survival.
It's b, because a mixed economy refers to socialism, where they have some control over economic decisions, but not all.