An investment advisor has recommended a $$50,000$ portfolio containing assets $R,$

$J,$ and $K$;$1$$$25,000$ will be invested in asset $R,$ with an expected annual return of $12$

percent; $$10,000$ willbe invested in asset J$,$ with an expected annual return of $18$

percent; and $$15,000$ will beinvested in asset $K,$ with an expected annual return of $8$

percent. The expected annual return of

this portfolio is

A$)10\mathrm{.}00\%.$

B$)12\mathrm{.}00\%.$

C$)12\mathrm{.}67\%.$

D$)$ unable to be determined from the information provided.