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$.$ C$2$C marketing

B$.$ supply chain management

C$.$ customer relationship management

D$.$ typical production$-$oriented era marketing practices

E$.$ a transactional marketing orientation