The correct answer is D. All of the above.
Fiscal policy is the use of government spending and taxation to influence the economy. Monetary policy is the use of interest rates and other tools to control the money supply. Industrial policy is the use of government intervention to promote the development of certain industries.
All of these tools can be used to achieve planned development. For example, a government might use fiscal policy to increase spending on infrastructure, which would create jobs and stimulate the economy. Or, a government might use monetary policy to lower interest rates, which would make it cheaper for businesses to borrow money and invest. Or, a government might use industrial policy to provide subsidies or tax breaks to certain industries, which would encourage investment in those industries.
The choice of which tools to use will depend on the specific circumstances of the country. For example, a country with a high level of unemployment might use fiscal policy to increase spending on social programs, while a country with a high level of inflation might use monetary policy to raise interest rates.
Planned development is a process of economic development that is guided by the government. The government uses various tools, such as fiscal policy, monetary policy, and industrial policy, to achieve its development goals. The choice of which tools to use will depend on the specific circumstances of the country.