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)(0.45)( $\surd$ 36.60) + (0.55)( $\surd$ 76.56) = 7.51%
B)( $\surd$ 36.60) + ( $\surd$ 76.56) = 14.80%
C) $\surd$ 57.28 = 7.57%
D) $\surd$ 25.33 = 5.03%