Firms That Sell Industrial Goods in International Market Should Focus

Firms that sell industrial goods in international market should focus on after-sales services because these services:

A) are almost always more profitable than the actual sale of the goods themselves.
B) require high levels of investment in training and development.
C) ensure that the firm's goods are not liable to lawsuits.
D) cost the firm almost nothing.
E) cannot be outsourced to other companies and must be provided by the firm itself.