Abaco Corp. has gross income of $230,000 and a taxable income of $50,000. The company did not include any special deductions in the calculation of taxable income. While reviewing the tax return, Abaco's accountant finds $20,000 of charitable contributions improperly classified as advertising and promotion expense. He sends he return back to the tax department for correction. What is Abaco's corrected taxable income?

a. $35,000

b. $55,000

c.$57,000

d. $63,000

e. $65,000