What is an unintended side effect that has a positive result for someone other than the original decision-maker? Group of answer choices Opportunity cost Free rider Positive externality Negative externalityThe market equilibrium price is $7.25 per unit, and the government intervenes and sets the price ceiling at $5.50 per unit. What happens in this market? Group of answer choices The market price will remain at $7.25. It falls to $5.50, and there is a surplus. It falls to $5.50, and there is a shortage. Suppliers will enter the market