MBB Drilling Ltd$.$ has issued $10-$year zero$-$coupon bonds. Each of these bonds has a face value of $$1000$ and $8$ years until maturity.$$ The interest on the bonds is compounded semi$-$annually. The market price for the bonds is $$910$ per unit. What is the company's cost of debt after tax if corporate tax rate is $30\%?$

Question $10$Select one:

a$.$

$0\mathrm{.}83\%$

b$.$

$1\mathrm{.}18\%$

c$.$

$2\mathrm{.}95\%$

d$.$

$0\mathrm{.}66\%$