Your client has $$103,000$ invested in stock A$.$ She would like to build a two$-$stock portfolio by investing another $$103,000$ in either stock B or C$.$ She wants a portfolio with an

expected return of at least $15\mathrm{.}0\%$ and as low a risk as possible, but the standard deviation must be no more than $40\%.$ What do you advise her to do$,$ and what will be the

portfolio expected return and standard deviation?

The expected return of the portfolio with stock B is $,\%.($Round to one decimal place.$)$