Which of the following assets shows the greatest Total Risk, and which is expected to have the lowest return, respectively? AssetAAssetBAssetCAssetDStd.dev.=11%Std.dev=18%Std.dev.=12%Std.dev.=15%Beta=1.5Beta=1.3Beta=0.9Beta=0.5 A; D B; A C; D A; A B; D