A Commodity Linked Bond Is Issued with an Embedded Call

A commodity linked bond is issued with an embedded call option.The current commodity price is $52,as is the exercise price on the call option.The call option is priced at $5.56.If the promised payment on the bond is the same as the issue price of $40,what is the yield on the bond if effective interest rates are 4.0% and the bond has a 1-year maturity?

A) 2.24%
B) 2.80%
C) 3.50%
D) 4.0%