Answer only, no need explainAssume US market portfolio and non$-$US portion of the world market portfolio have the same return. The standard deviation of the U$.$S$.$ market portfolio is $18\mathrm{.}2\%,$ the standard deviation of the non$-$U$.$S$.$ portion of the world portfolio is $17\mathrm{.}1\%,$ and the correlation between the U$.$S$.$ and non$-$U$.$S$.$ market portfolios is $.47.$ Suppose you invest $45\%$ of your money in the U$.$S$.$ stock market and the other $55\%$ in the non$-$U$.$S$.$ portfolio. What is the coefficient of variation $($CV$)$ of your portfolio?

a$)17\mathrm{.}7\%$

b$)9\mathrm{.}4\%$

c$)15\mathrm{.}1\%$

d$)18\mathrm{.}3\%$

e$)$ No Answer