Question no : 89 MM Purchasing Requisition concepts

Which of the following is TRUE about Purchase Requisition in the standard SAP system ?

I)    Both Plant and Storage Location are mandatory fields.
II)   Output message is determine at the item level as it does not have a header.
III)  Only the Plant is a mandatory field but not the Storage Location field.
IV)  Account Assignment "U" is possible with a Purchase Requisition.
V)   Vendor entry is optional at the header of the document.

A)   I, V
B)   I, II, IV
C)   I, II, IV, V
D)   III, IV
E)   III
.