A.0 B.1 C.2 D.3
A.a[0] B.a[2] C.a[a[4]-2] D.a[5]
A.int a[2][3]={1,2,3,4,5,6} B.int b[][3]={2,3,4,5} C.int c[3][2]={{1},{2},{3}} D.float d[3][]={5.3,6.0,6.8}