Which of the Following Situations Explains a 'Supplier Partner' Relationship

Multiple Choice

Which of the following situations explains a 'supplier partner' relationship? 

A)  A supplier partner is defined as a firm with whom a company has an ongoing buyer/seller relationship. 
B)  A supplier partner is defined as a firm with whom a company orders places directly at the supplier, without questioning the supplier's conditions. 
C)  A supplier partner is defined as a firm with whom a company has not yet completed a contractual agreement to supply. 
D)  A supplier partner is defined as a firm with whom a company supplies raw materials only.