Sam co purchased $100,000 of 8% bonds of AB industries on january 1 2019, at a discount, paying $92,278. The bonds mature january 1 2024 and yield 10%; interest is payable each july 1 and january 1. Sam co manages and evaluates investments performance on a documented risk management or investment strategy based on fair value information (fair value option). On december 31 2019 when the market rate of the interest is 12% and the fair value of the bonds is $97,140, sam co will record on unrealized gain/loss of:

a.$2958 loss

b.$3603 gain

c.$3603 loss

d.3634 gain

e.3634 loss