Drew can design a risky portfolio based on two risky assets, Origami and Gamiori. Origami has an expected return of 13% and a standard deviation of 20%. Gamiori has an expected return of 6% and a standard deviation of 10%. The correlation coefficient between the returns of Origami and Gamiori is 0.30. The risk-free rate of return is 2%. If Drew invests 20% money in Gamiori and the remaining in Origami, what is the standard deviation of his portfolio?

A. 10.53%

B. 57.54%

C. 9.79

D. 16.71