Consider a two-factor model under the arbitrage pricing theory setting. If a well-diversified portfolio P has betas of -0.5 and 1.3 on the two factors, respectively, and the risk premiums on the two-factor portfolios are 39% and 6%, respectively. The risk-free rate of return is 49%. Under the assumption of no arbitrage, what is the expected return of portfolio P?
O 10.39%
O 6.3%
O 5.39%
O 5%