There are 6 volumes of books on a track kept in order (such as, vol. 1, vol. 2 and so on). Aftersome readers used them, their order got disturbed. The changes showed as follows:

There are 6 volumes of books on a track kept in order (such as, vol. 1

1.	There are 6 volumes of books on a track kept in order (such as, vol. 1, vol. 2 and so on). Aftersome readers used them, their order got disturbed. The changes showed as follows:
A.	6, 3, 5, 1, 4, 2
B.	4, 6, ,3, 5, 1, 2
C.	3, 4, 1, 6, 5, 3
D.	2, 5, 1, 3, 6, 4
Answer» E.