下面正确创建了二维交错数组的是
A.int[][] Arr=new int[3][]; Arr[0]=new int[]{10,20,30}; Arr[1]=new int[]{40,50,60,70}; Arr[2]=new int[]{80,90};
B.int[,] Arr=new int[3,]; Arr[0]=new int[]{10,20,30}; Arr[1]=new int[]{40,50,60,70}; Arr[2]=new int[]{80,90};
C.int[][3] Arr={new int[]{10,20,30},new int[]{40,50,60,70},new int[]{80,90}};
D.int[3][] Arr={new int[3]{10,20,30},new int[4]{40,50,60,70},new int[2]{80,90}};