Which of the following statements is false?

A) In general, the difference between the cost of capital and the IRR is the maximum amount of estimation error in the cost of capital estimate that can exist without altering the original decision.

B) If the payback period is less than a pre-specified length of time you accept the project.

C) If the cost of capital estimate is more than the IRR, the NPV will be positive

D) The incremental IRR rule assumes that the riskiness of the two projects is the same.