Arlene Laschinger has a portfolio of 3 stocks. Xhe currently has 17.30% of ihr portfolio invested in GM (General Motors) in the Automobile Manufacturers sector, 17.80% in KMX (Carmax Inc) in the Specialty Stores sector, 64.90% in WM (Waste Management Inc.) in the Environmental & Facilities Services sector. They have betas of 1.22, 0.60, 1.04 respectively, given that the market is expected to return 6.00% and the yield on a 10-year treasury is 1.50%what is the beta of the portfolio?

		a. 0.99
		b. 0.17
		c. 1.04
		d. 0.74