A portfolio contains four securities, A, B, C, and D. The betas of these securities are .88, 1.14, 1.57, and 1.64 for A through D, respectively. Securities A and B have portfolio weights of 30 percent each while C and D have weights of 20 percent each. The risk-free rate is 4.39 percent and the market risk premium is 7.46 percent. What is the portfolio beta?

	A.	0.80
	B.	1.25
	C.	1.20
	D.	0.08
	E.	0.01