In the 5W Model of Customer Analysis, What Is the Primary

In the 5W model of customer analysis, what is the primary emphasis of the "Why" question?

A) Identifying the situational influences that affect the customer buying process.
B) Assessing how purchases vary across different distribution outlets.
C) Determining how the purchase and consumption of one product is related to other products.
D) Identifying the basic need-satisfying benefits provided by the firm's products.
E) Assessing how customers consume and dispose of products.