Question no 1992 : Material BOM

In SAP PP ECC6.0, a Material BOM which is created without a Plant is referred to as a _________ .

(only one answer)

A)     Group BOM.
B)     BOM without Plant.
C)     Reference BOM.
D)     Central BOM without Plant.
E)     It is not possible to create a Material BOM without a Plant.
.