13 Medro & Mariana were looking at what has been happening the last month. They noticed that capacity was greater than demand. Medro said: "this means: supply is greater than demand, there is under-capacity, and there is over-load." Mariana said: "this means: supply is less than demand, there is over-capacity, and there is over-load." Their friend said: "No, no, no, this means: supply is greater than demand, there is over-capacity, and there is under-load." Who of the three was right? (4 Points) a. Merim