The economic system of communist countries is most closely related to which of the following

The economic system of communist countries is most closely related to which of the following: A Command economy.

Explanation:Traditional economies are often based on hunting, fishing and gathering or farming. Often in a traditional economy, there is no surplus and no resources, and bartering is used to exchange for needed goods. ... Traditional economies are susceptible to weather changes and the availability of food and animals.

i would say b. research typically uses a variety of sources

answer; archaeologists;