The correct answer is option 4 i.e., Co-existence of Public and private sectors.
A mixed economy, an economy in which there are elements of both the public and private sectors.
A mixed economic system is a system that combines aspects of both capitalism and socialism.
A mixed economic system protects private property and allows a level of economic freedom in the use of capital, but also allows the governments to interfere in economic activities to achieve social aims.
There are three main types of economies: free market, command, and mixed.
USA and France are examples of mixed economic countries.
In a Mixed economy there should always be a check on Economic inequalities, Profit motive, and Social welfare.
The government takes huge incentives to control Monopoly practices through effective legislative measures.