Mike Flannery holds the following portfolio: Stock Investment Beta A $150,000 1.40 B $50,000 0.80 $140,000 1.00 D $100,000 1.20 Total $400,000 What is the portfolio's beta? Do not round your intermediate calculations. O a. 1.28 O b. 1.19 O c. 1.47 Od. 1.30 Oe. 1.45 Mike Flannery holds the following portfolio: Stock Investment Beta A $150,000 1.40 B $50,000 0.80 $140,000 1.00 D $100,000 1.20 Total $400,000 What is the portfolio's beta? Do not round your intermediate calculations. O a. 1.28 O b. 1.19 O c. 1.47 Od. 1.30 Oe. 1.45