Which of the Following Is True of What Makes Up

Multiple Choice

Which of the following is true of what makes up a market?

A) It includes both supply and demand,and it can be a physical or virtual location.
B) It includes both supply and demand,but cannot be defined by space.
C) It must have both customers and consumers.
D) It must have customers,but not necessarily consumers,and it is defined by the presence of demand but not necessarily supply.