Under the assumption that CAPM applies, complete the following table by calculating the values indicated by the question marks (15 in total), show necessary workings.

a) Under the assumption that CAPM applies, complete the following table by calculating the values indicated by the question marks (15 in total), show necessary workings. (60%) Security Amount Expected Beta Systematic Specific Total Risk)E % Return % Risk" % Risk" % Stock A $4000 9 0.6 12 3 20 Stock B $6000 8 0.4 8 17 19 Stock C $8000 3 0.8 3 24 3 Government - 3 0 3 0 3 debt All Share - 11 3 20 3 3 Stock Index Equity - 3 Z 3 Z Z portfolio ABC Footnotes: * Measured in Standard Deviations; N/Anot applicable b) Discuss the validity of using Weighted Average Cost of Capital as the discount rate for project investment appraisal. (40%)