Final answer:
The 'miracle of markets' refers to how, in a free-market economy, prices communicate information between buyers and sellers, ensuring that personal wants and production capabilities are matched without needing government intervention.
Step-by-step explanation:
The 'miracle of markets' most accurately refers to the way that prices in a free-market economy serve as a mechanism to convey information between buyers and sellers without the need for government oversight. The correct answer to the student's question, taking into account the principles of free-market economics, would likely be option A: the miracle of markets is that consumers and businesses learn about each other's personal wants and production capabilities. This aligns with the understanding that in a free market, prices are determined by the forces of supply and demand, and that a market economy allows for the negotiation of prices between producers and consumers.