What of the following people is making a decision based on opportunity cost?

Opportunity cost refers to the value of the next best alternative that is foregone when making a choice. To determine who is making a decision based on opportunity cost, we would need specific examples or scenariOS involving individuals weighing different options and their respective benefits. For instance, if someone decides to spend money on education instead of a vacation, they are considering the opportunity cost of not being able to take that vacation. Please provide specific individuals or scenariOS for a more precise answer.