A major problem facing the industrial sector in Nigeria is the high cost of production. Which of the following factors is MOST responsible for this situation?

Inadequate and unreliable electricity supply forces Nigerian industries to rely on self-generated power through diesel generators, significantly raising production costs. Poor infrastructure such as bad roads also increases transportation and logistics costs. Options A and D describe favourable conditions that would actually reduce production costs, while Option C (excessive subsidies) would lower rather than raise costs.