Arica purchased a set of Cut-Right kitchen knives after seeing an infomercial where the knives were shown cutting through a piece of steel. The knives were guaranteed to "remain sharp for a lifetime." When the knives arrived, Arica was pleased with them and frequently used them while cooking. One day her can opener broke and she needed to open a can of tomatoes for a dinner she was preparing. She took out one of her Cut-Right knives and began to saw through the top of the can when suddenly the knife slipped. It sliced her finger almost all of the way off, and she underwent extensive surgery and physical therapy to repair the damage. She brought a claim against the manufacturer for design defect, manufacturing defect, and a failure to warn because the knife did not come with instructions on how to cut through a can (though it was shown the knife could on tv), nor did it warn her not to cut through a can. Which of the following would be a defense the manufacturer should raise to try and avoid or reduce liability?

a. All of these choices are correct.

b. Comparative Fault

c. Misuse of the Product

d. Obvious Risk