Many catalog companies create special$-$run issues based on what customers have purchased in the past. For example, customers who frequently order bedding items like sheets and pillows receive a catalog with a larger section of bedding items than do customers who mostly order kitchen tools. This is an example of

A$.$

typical production$-$oriented era marketing practices.

B$.$

customer relationship management.

C$.$

C$2$C marketing.

D$.$

a transactional marketing orientation.

E$.$

supply chain management.