What Are the Two Variables Used in Kraljic's (1983) Purchasing

Multiple Choice

What are the two variables used in Kraljic's (1983) purchasing portfolio approach? 

A)  Purchasing impact on the bottom line of the company and supply risk. 
B)  Purchasing and demand risk. 
C)  Purchasing impact on suppliers and profits. 
D)  Purchasing impact on the bottom line of the company and distribution risks.