Answer: d. production and distribution processes becoming obsolete
Explanation: Cost leadership strategy is a strategy employed for unsegmented markets and is characterized by tight accounting controls on manufacturing costs and overhead expenses, continuous improvement in productivity, products, services or programs etc. Thus, the strategy relies on experience and maturity of operations to reduce production costs below industry average. However, a threat to this strategy is a technological advance in the industry that makes older technologies or products, including production and distribution processes obsolete.