create 2 series of returns at least 10 periods in length.Refer them as, return Series A and return Series B.Assuming that they are independent of each other and you are a risk-averse investor, explain which series of returns is most preferred.Then, create 2 series of costs at least 10 periods in length.Call them Cost Series C & D.Assuming they are independent of each other and that you hold and aversion to uncertainty, explained which is preferable.