A portfolio consists of $$200,000$ in Treasury bills that yield $6\mathrm{.}7\%,$ $$650,000$ in Proctor & Gamble stock with an expected return of $9\mathrm{.}1\%$ and $$250,000$ in Exxon Mobil stock with an expected return of $10\mathrm{.}8\%.$ What is the expected return for this portfolio?

$9\mathrm{.}21\%$

$9\mathrm{.}15\%$

$8,95\%$

$9\mathrm{.}04\%$