You hold a diversified $100,000 portfolio consisting of 20 stocks with $5,000 invested in each. The portfolio's beta is 1.12. You plan to sell a stock with b = 0.90 and use the proceeds to buy a new stock with b = 1.50. What will the portfolio's new beta be? Do not round your intermediate calculations.

A. 1.310

B. 1.500

C. 1.150

D. 1.195

E. 1.165