Question 4 [20 Marks] Using relevant examples, discuss the main activities that have to be managed in the product returns management and in reverse logistics. Question 5 [20 Marks] "Packaging represents the single most important interface between products and the logistics system and it can thus be used as a vehicle for enhancing operational efficiency. It represents an important interface between the different actors in the supply chain and hence influences the effectiveness of these companies" (Saghir, 2004). In light of this statement, discuss areas where packaging brings benefits to the supply chain operations. h Question 6 [20 Marks] Customer service is often viewed as the primary interface between logistics and marketing. The elements of customer service can be grouped according to when the transaction between the organisation and customer takes place. Discuss these elements showing clearly how logistics can influence customer service in each element