You have a $1 million portfolio consisting of a $200,000 investment in each of 5 different stocks. The portfolio has a beta of 2.0. If you add one more stock with an investment of $400,000 and a beta of 0.5. What will the portfolio's new beta be after this transaction?

Select one:

a. 1.57 b. 1.65 c. 1.4 d. 1.33 e. 1.7