$25.$ Table above summarizes Risk Budgeting based on Reverse Optimization. Asset Class Risk Premiums $($Ri $-$ Rf$)$ are calculated based on Market Risk Premium of $4\%.$ What must be the Portfolio St$.$ Dev. Based on these results?

A$.0\mathrm{.}32$

B$.12\mathrm{.}5\%$

C$.10\mathrm{.}3\%$