The concept of opportunity cost is also referred to as *1 pointA. social costB. real costC. fixed costD. variable cost .

The concept of opportunity cost is also referred to as *1 point A. social cost B. real cost C. fixed cost D. variable cost.

To determine the correct answer, we need to understand the concept of opportunity cost. Opportunity cost refers to the value of the next best alternative that is forgone when making a decision. In other words, it is the cost of choosing one option over another.

Now, let's analyze the given options:

A. Social cost: Social cost refers to the total cost incurred by society as a result of a particular decision or action. It is not the same as opportunity cost, so this option is not the correct answer.

B. Real cost: Real cost refers to the actual expenses or resources used in producing a good or service. While it is related to the concept of opportunity cost, it is not the same thing. Therefore, this option is not the correct answer.

C. Fixed cost: Fixed cost refers to the expenses that do not change regardless of the level of production or sales. It is not directly related to the concept of opportunity cost, so this option is not the correct answer.

D. Variable cost: Variable cost refers to the expenses that change in proportion to the level of production or sales. It is also not directly related to the concept of opportunity cost, so this option is not the correct answer.

Based on the analysis above, none of the given options (A, B, C, or D) accurately represents the concept of opportunity cost. Therefore, the correct answer is not provided in the given options.