The answer is B. And why is the covariance between the two assets 0.0551, and the standard deviation of this portfolio 27.79%?

51. Use the following information for Questions 51, 52 and 53. Suppose you are constructing a portfolio of assets A and B, whereas you invest in a portfolio with a long position of $6000 and $1500 in each asset respectively. These assets have a correlation of 0.5. Asset A has a return of 10.5% and standard deviation of 29%. Asset B has a return of 14.7% and standard deviation of 38%. What is the expected return of this portfolio? A) 20.16 % B) 11.34 % C) 13.86% D) 5.04 %