Which View of Purchasing Is Described in the Following Statement??Management

Which view of purchasing is described in the following statement??Management recognizes that purchasing is actively involved in deciding on the company's future business strategy and how to strengthen the company's competitive position 

A)  Purchasing as an operational, administrative activity. 
B)  Purchasing as a commercial activity. 
C)  Purchasing as part of integrated logistics 
D)  Purchasing as a strategic business area.