Which of the Following Explains 'Purchasing Management

Multiple Choice

Which of the following explains 'Purchasing Management'? 

A)  All activities necessary to manage suppliers. 
B)  All activities necessary to manage supplier relationships. 
C)  All activities necessary to manage supplier relationships in such a way that their activities are aligned with the company's overall business strategies. 
D)  All activities necessary to manage supplier relationships in such a way that their activities are aligned with the company's overall business strategies and interests.