What is the primary purpose of Consumer Decision Trees (CDTs) in shelf organization?

The correct answer is A .

Consumer Decision Trees are used to organize the shelf around how shoppers think and shop the category. CMKG’s space-management guidance states: “Use the consumer decision tree for the best layout based on how the Shopper shops the section.” That is the cleanest supporting extract for this question. The CDT is not simply a sales-ranking tool; it reflects the shopper’s decision hierarchy, such as category, segment, need state, brand, size, flavor, form, or price tier, depending on the category.

Option B is wrong because identifying popular products is a sales-ranking exercise, not the purpose of a CDT. Option C is closer to assortment simulation or predictive modeling. Option D has some relevance because buying patterns and substitution can inform a CDT, but the best definition is broader: CDTs map the shopper’s decision path through the category.