Economy with Both Private and State Sectors

Steps:

• Identify key features: private firms provide some goods/services, state provides others.
• Recall economy types: free market (all private), planned (all state), mixed (both).
• Match description to mixed economy, where both sectors coexist.
• Eliminate extremes that don't fit partial state involvement.

Why C is correct:

• A mixed economy is defined as one combining private enterprise and government intervention, allowing both market forces and state provision of goods/services.

Why the others are wrong:

• A: Free market economy relies entirely on private sector without state provision.
• B: Joint economy is not a standard economic term or type.
• D: Planned economy has all goods/services controlled by the state, no private sector role.

Final answer: C