Question no : 238 PP Execution Order Concepts

In SAP PP, which of the following statements are TRUE ?

I)     A BOM is required when creating a production order.
II)    At least one operation is needed when creating a production order.
III)   A production order can be created without a material.
IV)   A production order can be created when saving a Sales Order.

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