c) If there exist a risk-free asset (re) that earns 4% risky portfolio (P). (1 mark c.1. Composition of P (Weights of stock X and Y) (2 marks) c.2. Return and risk of the optimal risky portfolio (P). c.3. Draw the efficient frontier in the presence of a risk-free asset and mark portfolio P on the graph in Al mo part a above Say somet c) If there exist a risk-free asset (re) that earns 4% risky portfolio (P). (1 mark c.1. Composition of P (Weights of stock X and Y) (2 marks) c.2. Return and risk of the optimal risky portfolio (P). c.3. Draw the efficient frontier in the presence of a risk-free asset and mark portfolio P on the graph in Al mo part a above Say somet