Pls and thanks

What is the standard deviation of a portfolio that contains two stocks, "A" and "B"? Stock "A" has an expected return of 15% and a standard deviation of 20%. Stock "B" has an expected return of 2% and a standard deviation of 11%. The proportion of your wealth invested in stock "A" is 30%. The correlation between the two stocks is 0.8. 5.68% 9.80% 10.26% 13.01% 13.70%