On January $1,2012,$ TWIT issued $1,000$ of its $10\%,$ $$1,000$ bonds for $$1,040,000.$ These bonds were to mature on January $1,2022$ but were callable at $101$ any time after December $31,2015.$ Interest was payable semiannually on July $1$ and January $1.$ On July $1,2018,$ TWIT called $60\%$ of all of the bonds and retired them. TWIT uses ASPE and amortizes bond premiums and discounts on a straight line basis. The gain or loss in $2018$ on this early extinguishment of debt was:

a$.$

$40,000$ gain.

b$.$

$2,400$ gain

c$.$

$ $6,000$ loss.

d$.$

$4,800$ gain

e$.$

$ $8,000$ loss.