Stan, an Air Conditioning and Heating Technician, Files Suit Against

Multiple Choice

Stan, an air conditioning and heating technician, files suit against Temp-Set Corporation, alleging that its thermostats are unreasonably dangerous due to the possibility of electrical shock while being installed. Temp-Set's best defense is most likely

A) assumption of risk.
B) knowledgeable user.
C) commonly known danger.
D) none of the choices.