In the cost-volume-profit graph,
  a.  the break-even point is found where the total revenue curve crosses the x-axis.
  b.  the area of profit is to the left of the break-even point.
  c.  the area of loss cannot be determined.
  d.  both the total revenue curve and the total cost curve appear.
  e.  neither the total revenue curve nor the total cost curve appear.