The real risk-free rate of interest is 2 percent. Inflation is expected to be 4 percent this coming year, jump to 6 percent next year, and increase to 7 percent the year after (Year 3). According to the expectations theory, what should be the interest rate on 3-year, risk-free securities today? \begin{tabular}{l} 7.67% \\ \hline 8.17% \\ \hline 7.17% \\ \hline 6.67% \\ \hline 6.17% \end{tabular}