Help Finance a Major Expansion, Castro Chemical Company Sold a Noncallable

help finance a major expansion, Castro Chemical Company sold a noncallable bond several years ago that now has 20 years to maturity.This bond has a 9.25% annual coupon, paid semiannually, sells at a price of $1,075, and has a par value of $1,000.If the firm's tax rate is 40%, what is the component cost of debt for use in the WACC calculation?

A) 4.35%
B) 4.58%
C) 4.83%
D) 5.08%
E) 5.33%