Consider the Following Portfolio of Assets: What Is the Standard

Consider the following portfolio of assets: What is the standard deviation of the portfolio (round to two decimals)?
A)(0.3)( $\surd$ 82.00) + (0.7)( $\surd$ 76.00) = 8.82%
B)( $\surd$ 82.00) + ( $\surd$ 76.00) = 17.77%
C) $\surd$ 15.75 = 3.97%
D) $\surd$ 48.93 = 6.99%