We have the historical returns of two risky assets: Date asset_A asset_B 4/30/2020 -0.1554 0.1363 0.0851 0.0254 5/31/2020 6/30/2020 7/31/2020 0.1474 0.1106 0.1651 0.0074 0.2166 0.1028 -0.1025 -0.0674 8/31/2020 9/30/2020 Calculate stock expected return and variance of return using time-series analysis. Which asset has a higher total risk? OA OB O Not sure They have the same systematic risk