Which concept in microeconomics explains that for every decision you make, there is a trade-off?

• A. Opportunity cost
• B. Market equilibrium
• C. Marginal utility
• D. Price elasticity

Answer: (A)

Verified step by step guidance

1. Understand that the question is asking for the microeconomic concept that explains the idea of trade-offs in decision-making.
2. Recall that in microeconomics, a trade-off means that choosing one option requires giving up another option.
3. Identify that 'Opportunity cost' is the concept that measures the value of the next best alternative foregone when making a decision.
4. Recognize that 'Market equilibrium' refers to the balance of supply and demand, 'Marginal utility' relates to the additional satisfaction from consuming one more unit, and 'Price elasticity' measures responsiveness of quantity demanded or supplied to price changes.
5. Conclude that the concept explaining trade-offs in every decision is 'Opportunity cost' because it captures the cost of what you give up when you choose something.