Final answer:
The subject of this question is Electrical Engineering. It pertains to the section 250.4 General Requirements for Grounding and Bonding in the National Electrical Code (NEC).
Step-by-step explanation:
The subject of this question is Electrical Engineering. It pertains to the section 250.4 General Requirements for Grounding and Bonding in the National Electrical Code (NEC). This section discusses the requirements for grounding and bonding of electrically conductive materials and other equipment.