Two experienced welders were working inside a barge. Both received training in their respective trade and also received safety training required by the government and the company. The company regularly stressed the importance of safety procedures to prevent accidents. A gas hose leading to the welding torch developed a leak that the workers apparently could not smell because of "nasal fatigue" from having inhaled so much gas. One worker lit a cigarette, igniting the gas and killing both workers. The workers' heirs sued the gas and gas hose producers in strict liability. Was either company liable?

a$.$ No$,$ because the employees were negligent.

b$.$ No$,$ because only one company can generally be liable in this type of accident.

c$.$ Yes, because there was likely a defect in the hose that could have been prevented.

d$.$ Yes, because this type of accident does not happen to experienced workers.