You own a stock portfolio invested 30 percent in Stock Q, 25 percent in Stock R, 10 percent in Stock S, and 35 percent in Stock T. The betas for these four stocks are 1.47, 0.85, 0.63, and 1.14, respectively. What is the portfolio beta?
A 1.14
B 1.12
C 1.09
D 1.17
E 1.06