Question no 2818 : Material Number Format

In SAP MM ECC6.0 EhP6, the following Material numbers for the same material type :

001
00001
0000001

can be handled via which of the following configuration ?

A)   Lexicographical setting at the Material Type.
B)   Lexicographical setting at the Plant.
C)   Lexicographical setting at the Client.
D)   Leading Zero setting at the Material Type.
E)   Leading Zero setting at the Material Client.
.