A.3 B.4 C.5 D.9
A.inta[2][]={1,2,3,4,5} B.inta[][2]={{0},{}} C.inta[2][2]={{1,2},{3}} D.inta[][]={1,2,3,4}
A.a[0][1/2] B.a[1][1] C.a[4-4][0] D.a[0][3]