The expected returns of P,A,B, and C are 5%, 8.125%, 10.125%, and 9.125% respectively. While the standard deviations of P, A, B, and C are 10%, 15%, 17%, and 20% respectively.

[1.1, Marks 2]Which of the three indifference curves - denoted with "1", "2" and "3" on the graph -passing through Pis associated with a mean-variance investor with a risk aversion of 5? Justify your answer with calculations.

[1.2, Mark 1]Keep assuming a mean-variance investor with a risk aversion of 5 and consider a new portfolio D with a standard deviation of 5%. What expected return portfolio D has to offer to lie on the same indifference curve passing through portfolio P?

[1.3, Mark 1]Which portfolio would a risk-neutral investor prefer among P, A, B, C and D? Justify your answer.