Answer and Explanation:=
Medium of exchange - It is used to enable the sale and purchase between the parties. It represents the standard of value that is necessary to accept all the parties.
Larry writes a check for $4,000. It is a medium of exchange because it shows trade of goods between Larry and the car seller.
Unit of account - It gives permission to do the differentiation between two things.
Larry can easily differentiate the price of the super is more than the price of duper. It is unit of account because he knows the value of the super and duper.
Store of value - It is the value that can be saved and exchanged for a long time period.
Larry has saved checking amount is $4000. It is store of value because it is saved amount.