Please Answer

4. {12 points} Explain which of the three functions of money is being emphasized in the following three situations. (a) I want to retire at some point in the future. Thus, I decide to place some of my current salary in a savings account. (b) I am condent that others will accept U.S. currency for providing me with goods and services. Thus, I am willing to accept U.S. currency in exchange for my services as an economics professor. (c) I am currently deciding on what type of research computer to purchase. In doing so, I compare the relative values of different computers using U.S. dollars