Which of the Following Is the Amount Computed by the Following

Which of the following is the amount computed by the following formula?
(Net income + interest expense) / Average total assets

A) The amount computed from the formula is deferred taxes payable.
B) The amount computed from the formula is income tax expense.
C) The amount computed from the formula is the rate of return on total assets.
D) The amount computed from the formula is the rate of return on stockholders' equity.