Which of the following statements about tax expense per books or tax payable is false? Select one:

a. Tax payable is calculated by multiplying taxable income by the applicable tax rate.

b. Tax expense is calculated by multiplying pretax book income by the applicable tax rate.

c. Tax expense per books and tax payable are calculated from the same rate schedule

d. Tax expense per books must to be added back on the M-1 in reconciling pretax book income to taxable income.