Help please with the process to do this exercise.

On July 1, 2017, Paton Corp. issued 9% bonds bonds were issued for $7,648,000 to yield 10% con Corp. issued 9% bonds in the face amount of $8,000,000, which mature on July 1, 2023. The for /.048,000 to yield 10%, resulting in a bond discount of $352,000. Paton uses the effective- interest method of amortizing bond discount. Interest is payable annually on June 30. At June 30, nterest is payable annually on June 30. At June 30, 2019, Paton's unamortized bond discount should be which of the following? A. $272,000 B. $281,600 C. $257,920 D. $248,000