With Respect to Charitable Donations Made by a Corporation, Which

With respect to charitable donations made by a corporation, which of the following statements is correct?

A) They create a credit against Tax Payable, based on the corporation's tax rate prior to the deduction of the federal abatement.
B) If they cannot be used during the current year, they can be carried back three years.
C) They are a deduction in the determination of corporate Taxable Income but not corporate Net Income For Tax Purposes.
D) The amount of contributions that can be deducted is only limited by the corporation's Net Income For Tax Purposes for the year.