Which of the following statements is not true with respect to the calculation of the upper limit on misstatements?
a. The tainting percentage is determined based on the difference between the recorded balance and the audited balance.
b. A separate incremental allowance for sampling risk is calculated for each misstatement discovered by the auditor.
c. If no misstatements are detected, the basic allowance for sampling risk equals zero.
d. The projected misstatement is determined by multiplying the sampling interval by the tainting percentage.