A. for (int i=0; i< a.size(); i++) System.out.println(a.get(i)));
B. for (int i=0; i< a.size(); i++) System.out.println(a[i]);
C. while( iter.hasNext() ) System.out.println(iter.next()) ;
D. for (int i=0, i< a.size(); i++) System.out.println(iter[i]);
E. for (int i=0; i< a.size(); i++) System.out.println(iter.get(i));