Answer do you agree the following statements and explain your argument

1. The expected return of a risky asset is always greater than risk free rate

2.As variance increases, the expected return of a risky asset also increases.

3.According to the separation property, the proportion to be invested in the optimal risky portfolio for an investor is independent of the investors personal preference

4.A more risk-averse investor has a steeper indifference curve for the utility function.