Part B: Suppose you can do one, and only one, of the following four things today: Thing A, Thing B, Thing C, and Thing D; and you get monetary benefits, and only monetary benefits, from doing each, you may also incur monetary expenses in doing each, These benefits and expenses are as follows, Thing A Thing Be Thing Ce Thing De $ Benefits $300 $600 $800 $400 $ Expense $ 0 $250 $5200 $180 d) Calculate the total cost (including the opportunity cost) of each of the four things. e) Describe how you make your decision as to which thing to do today. Also try to explain how the concept of opportunity cost is useful in your decision making