Based on the fact that you gave up the beach to study for the economics final, the opportunity cost is d. the sun and fun you gave up by studying.
What is the opportunity cost of studying?
The opportunity cost is what we give up in order to pursue our current course of action.
You gave up going to the beach and having fun in the sun so this is the opportunity cost of studying for economics.
Find out more on opportunity cost at https://brainly.com/question/481029.
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