Based on the following information calculate the portfolio risk $,$

A B

Weights $30\%70\%$

Standard d$$viation $4\%9\%$

Correlation $0\mathrm{.}7$

Question $20$ options:

$7\mathrm{.}19$

$5\mathrm{.}87$

$5\mathrm{.}17$

$5\mathrm{.}67$