please answer all parts

Gilly is the PFO of Petro, Incorporated This year, Glly's compensation package was $681,000 which included $567,500 salary and an accrued, unfunded liability to pay the $113,500 balance upon retirement at age 60 . Petro, Incorporated pays $113,500 deferred compensation to Gilly in 2027 , the year of retirement. Required: a. How much compensation income does Gilly recognize in 2027 ? b. What is Petro's 2027 tax deduction for the payment to Mr. Gilly? c. What is the effect of the payment on Petro's 2027 book income and deferred taxes? Assume a 21 percent tax rate