An ungrounded receptical outlet is to be replaced by a ground fault circuit interupter receptical. There is no provision for grounding within the receptical box. Which one of the following is NOT an option w hen this recepticle is being replaced?

An ungrounded receptical outlet is to be replaced by a ground fault circuit interupter receptical. There is no provision for grounding within the receptical box. Which one of the following is NOT an option w hen this recepticle is being replaced?