A consumer purchases a ceramic heater fan for his cubicle at work. The fan is covered by a safety guard, the openings in which are almost an inch wide. When reaching down to change the heat settings, he inadvertently slips his hand in between the gap in the guard. His hand is injured by the fan blades. He decides to see a lawyer because he feels that the openings in the safety guard were too large and ultimately caused his injury. Which of the following types of product liability is most applicable to this scenario? (A) Breach of express warranty. (B) Negligent design. (C) Negligent manufacture. (D) Duty to warn