Concept:Capitalism is the system built on private ownership and a free market, where competition is a central and protected feature.
Explanation:In capitalism, private businesses operate freely to earn profit.
These businesses compete with one another for customers, resources, and market share.
This open competition is guaranteed by the system itself, as the market is not controlled by the state.
It encourages innovation, better quality, and lower prices for consumers.
Unlike feudalism, social democracy, or communalism, capitalism gives maximum room for competitive enterprise.
Answer:D. Capitalism