P129,000P131,382Tommy Company issued 10-year bonds on January 1, 2018. The company's year-end is December 31, and financialstatements are prepared annually. The amortization and interest schedule below reflects the bond Issuance and thesubsequent interest payments and charges.AMORTIZATION SCHEDULEInterestInterestAmountCarrying ValueDatePaidExpenseUnamortized01/01/18----P28,253P471,74712/31/18P 55,000P56,61026,643473,35712/31/1955,00056,80324,840475,16012/31/2055,00057,01922,821477,17912/31/2155,00057,26120,560479,44012/31/2255,00057,53318,027481,97312/31/2355,00057,83715,190484,81012/31/2455,00058,17712,013487,98712/31/2555,00058,5588,455491,54512/31/2655,00058,9854,470495,53012/31/2755,00059,470*--500,000* Adjustment due to rounding.The bonds were issued atA discountA premiumFace valuePar valueWhat amortization method is used in the amortization schedule presented? The bonds were issued atStraight-line methodBonds outstanding methodEffective interest methodDeclining balance method