Answer:
C) comparative negligence.
Step-by-step explanation:
In common law, comparative negligence is a legal defense used to try to share the blame of causing an accident or aggravating the injuries resulting from an accident.
In this case, the company cannot claim that it wasn't negligent by selling a defective beam, but it can claim that Flo's injuries were aggravated by the fact that she didn't use protective gear. So she should partially share the blame of her injuries.
The same happens when a speeding car hits a pedestrian who didn't look at the road before trying to cross the street. The car is responsible for hitting the pedestrian, but the pedestrian is also partially responsible for not looking at the street before trying to cross.