Arrange the following steps in the correct order for calculating opportunity costs in a trade scenario: A) Identify the alternatives available, B) Determine the value of the next best alternative, C) Make a decision based on the identified values, D) Compare the efficiency of production for each alternative.

To calculate opportunity costs in a trade scenario, you first need to identify the alternatives available to you. This means considering what options you have and what you could do instead of the current choice. After identifying the alternatives, the next step is to determine the value of the next best alternative, which helps you understand what you are giving up. Once you know the value, you can compare the efficiency of production for each alternative to see which one is more beneficial. Finally, based on this information, you make a decision that maximizes your benefits, ensuring you choose the option that offers the greatest value.