A key feature of a mixed economy is:

A mixed economy is characterized by the coexistence of both private enterprise and public sector involvement in economic activities. This structure allows for the benefits of capitalism, such as innovation and efficiency fostered by private businesses, while also incorporating government oversight and public services to address market failures and ensure equitable access to resources.

In a mixed economy, the private sector operates alongside the government, which can regulate or participate in certain industries to promote public welfare, protect consumers, and provide essential services, such as healthcare and education. This balance aims to combine the benefits of free-market competition with societal goals, providing a more stable and equitable economic environment compared to purely capitalist or socialist systems.

The other options do not accurately capture the essence of a mixed economy. Complete government control would indicate a command economy, minimal regulation suggests a laissez-faire approach, and focusing solely on agricultural production would not encompass the diverse economic activities typical of a mixed economy.