​Using the Graphical Method to Demonstrate the Break-Even Point,which of the Following

Multiple Choice

​Using the graphical method to demonstrate the break-even point,which of the following statements is NOT true?

A) ​constant selling price per unit are represented by TR
B) ​constant variable cost per unit is represented by TC
C) ​variable costs increase at a constant rate of VC per unit of output
D) ​below the point where TR and TC intersect,operating profits are realized
E) ​all of these are true