Online retailer NetShop had been drastically losing market share to its competitors. The management hired a reputed consulting firm to advise the company. The experts from the consulting firm pointed out that the company primarily lost out on its competitive advantage due to its poor customer service, including slow response times to customer inquiries and unclear return policies. These ineffective policies and procedures led to many disgruntled customers and a steady migration to more customer-friendly retailers. NetShop can best solve its problem by working on its:

a. immobile assets.
b. support activities.
c. resource flows.
d. resource stocks.