Take the following as truth: As the discount increases above 4.5a, the postal service falls below breakeven and will have to make up the losses with a price increase for all mailers, both those who are now presorting and those who have not thus far been affected.
Then the following statement: "The postal service's breakeven point lies above a discount rate of 4.5a." is true, false, or inconclusive?
Answer: True