one query

What are 2 methods of automatic creation of equipments
A) 1.Automatic creation of equipment when creating fixed asset. 2. During GR of Asset PO when serial number profile is not active
B) 1.Automatic creation of equipment when creating fixed asset. 2. During Invoice posting for Asset PO when serial number is not active.
C) 1.Automatic creation of equipment when creating fixed asset. 2. During GR of Asset PO when serial number profile is active
D) 1.Automatic creation of equipment when creating fixed asset. 2. During Invoice posting for Asset PO when serial number is active