3. (a)Equity is the expensive source of capital compared to debt. Discuss (b)The total market value of Oakfield Estate Company's stock is Tshs.6 million, and the total value of its debt is Tshs.4 million. The treasurer estimates that the beta of the stock currently is 1.5, and the expected risk premium on the market is 10%. The Treasury bill rate is 4% Required: (i)Find the required rate of return on Oakfield stocks? (ii)What is the beta of the company's existing portfolio of assets