Since retained earnings is a more expensive source of financing than debt and preferred stock, the weighted average cost of capital will fall once retained earnings have been exhausted True O False Nico wants to invest all of his money in just two assets: the risk - free asset and the market portfolio What is Nico's portfolio beta if he invests a quarter of his money in the market portfolio and the rest in the risk free asset? O A 0.25 B. 0.00 OC. 1.00 OD. 0.75