Answer:
D.
Step-by-step explanation:
Making a choice-any choice, always has some cost. So by spending a certain amount on item A, we are giving up the opportunity to have item B. For example, by going to college to taking out loans to pay for college you are forsaking the opportunity to work, and earn money. Every time you make an economic choice, there is an opportunity cost to you in terms of what you had to give up, or a trade off.
Opportunity Cost is the income given up by not choosing the next best alternative for the use of the resources. Opportunity costs are never actually incurred and cannot be measured precisely.
In this case, Tom Richards could have earned $100 per hour from going to his practice. Since, playing golf takes 5 hours it means that he is sacrificing his 5 hours income from the practice. So, his opportunity cost should be $500. Moreover, he also spends $80 for his golf practice which he would not have spent in case if he didn't play golf.
A healthy lunch at the course, which he eats everyday, cost him $20. As it is an every day cost, this is not included.