Which feature is associated with a single market?

• A. Free movement of capital
• B. Free movement of goods
• C. No movement of services
• D. Free movement of factors of production, enterprise and services

Answer: (D)

A single market is defined by removing barriers to cross-border economic activity so that different elements of production can move freely across borders. The best match among the options describes free movement of factors of production, enterprise and services, because it covers the main elements that underpin a single market: labor and capital (factors of production), business activity (enterprise), and services. The other options only describe a single dimension—capital or goods—which doesn’t capture the full, integrated freedoms of a single market. Also, claiming no movement of services contradicts the very idea of a single market, which includes the free movement of services.