BG HighTech has a BB$-$rated bond outstanding with $12$ years to maturity. The bond has a coupon rate of $6\mathrm{.}55\%$ paid annually and a face value of $$1000.$ The current price of the bond is $$1050.$ Also, the average yield on the BB$-$rated bonds is $5\mathrm{.}38\%.$ What is the best estimate of the pretax cost of debt for the calculation of WACC?

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$($A$)6\mathrm{.}55\%$

$($B$)5\mathrm{.}95\%$

$5\mathrm{.}38\%$

$5\mathrm{.}55\%$

$4\mathrm{.}79\%$