A state statute requires machinery in industrial plants to include automatic shut-off switches accessible to each employee working on the machine. Steel Company's(SC's) equipment does not have the switches. Trudy, an SC employee, suffers an injury than an accessible shut-off switch would have prevented. Trudy's best theory for recovery against SC is a. assumption of risk. b. negligence per se. C. res ipsa loquitur. d. strict liability