A command economy is best described as an economic system where the government exerts significant control over the production, allocation of resources, and pricing of goods and services. In a command economy, the state makes all decisions regarding what to produce, how to produce it, and for whom the products are produced. This contrasts with a market economy, where these decisions are largely driven by consumer demand and the forces of supply and demand.
In summary, neither option A nor option B accurately reflects the characteristics of a command economy, as option A suggests no government control, which aligns more with a free-market system, while option B refers to a monarch, which does not represent a typical command economy. Instead, the defining feature of a command economy is extensive governmental regulation and planning.