Development Company sold a noncallable bond several years ago that now has $15$ years to maturity. This bond has a $5\mathrm{.}00\%$ annual coupon, paid semiannually, it sells for $$1,004,$ and it has a par value of $$1,000.$ If Delano$$s tax rate is $42\%,$ what component cost of debt should be used in the WACC calculation?

a$.$

$5\mathrm{.}00\%$

b$.$

$2\mathrm{.}88\%$

c$.$

$2\mathrm{.}90\%$

d$.$

$4\mathrm{.}50\%$