Protection of property rights and price signals is necessary in a well-functioning market or capitalist economy, but is not necessary for a command economy. So, the correct answer is option D.
The economic system known as capitalism, or the capitalist economy, is one in which private firms control and govern the factors of production such as capital goods, labour, natural resources, and entrepreneurship.
In a capitalist economy, usually referred to as a market economy, the creation of all products and services is based on supply and demand in the market. It differs from the centrally planned economy, commonly referred to as a command economy or a planned economy.
Profit-making is the primary driving force behind a capitalist economy. The existence of open markets and the absence of government involvement in company regulation are other traits of the capitalist economy.
To know more about Capitalist economy visit:
https://brainly.com/question/28903309
#SPJ4
