Final answer:
The people in the village have a traditional economic system where they exchange goods instead of using money.
Step-by-step explanation:
The subject of this question is Social Studies. The question asks about the economic system observed by Jamie in a village in Africa. Based on the description provided, where people exchange goods instead of using money, the correct answer is D. traditional. This type of economic system is known as a traditional economy, where economic activities are based on customs, traditions, and bartering.
Learn more about Traditional economy