What is the real rate of interest from a Yeagley Corporation bond when the pure rate of interest is $2\%,$ the inflation premium is $6\%,$ and the risk premium is $4\%?$

a$)6\mathrm{.}08\%.$

b$)8\mathrm{.}12\%.$

c$)12\mathrm{.}44\%.$

d$)10\mathrm{.}24\%.$