Based on the following information $,$ the Weighted average cost of capital is most likely to be :

Weights

Weight of Equity

$20\%$

Weight of Preferred Shares

$30\%$

Weight of Debt

$50\%$

Cost of Capital

Cost of Equity

$15\%$

Cost of Preferred Shares

$9\%$

Cost of debt

$8\%$

Tax rate $28\%.$

Question $18$ options:

$8\mathrm{.}58\%$

$9\mathrm{.}7\%$

$10\mathrm{.}2\%$

$11\mathrm{.}5\%$