BlackRock Inc issues a 7 percent semi-annual coupon bond with 7 years maturity and $1,000 face (par) value. If the current market price of this bond is $914, find its yield to maturity. \begin{tabular}{c} \hline 11.94% \\ \hline 2.90% \\ \hline 8.73% \\ \hline \end{tabular} none of the answers is correct 8.66%