Answer to Question 1
The three functions of money are a medium of exchange, a unit of account, and a store of value. A medium of exchange is an object that is generally accepted in exchange for goods and services. A unit of account is an agreed upon measure for stating the prices of goods and services. A store of value is anything that can be held and later exchanged for goods and services. Money serves all three of these functions.
Answer to Question 2
B