The main mechanism that regulates the market system is:

• self-interest.(it's not this one because I accidentally clicked it)
• private property.
• competition.
• freedom of enterprise and choice.

The market system communicates changes in market conditions and elicits appropriate responses from businesses and resource suppliers through changes in prices. This is known as the

• guiding function of prices.
• monetary function of prices.
• circular flow of income.
• market determination of prices. ( it's not this one because I got it wrong)