An ungrounded receptacle outlet is to be replaced by a ground fault circuit interrupter receptacle. There is no provision for grounding within the receptacle box. Which one of the following is NOT an option when this receptacle is being replaced?

An ungrounded receptacle outlet is to be replaced by a ground fault circuit interrupter receptacle. There is no provision for grounding within the receptacle box. Which one of the following is NOT an option when this receptacle is being replaced?