What type of protection is required for all 15- and 20-amp 120-volt circuits in certain areas of a home?

The correct answer for the type of protection required for all 15- and 20-amp 120-volt circuits in certain areas of a home is GFCI (Ground Fault Circuit Interrupter). This specific type of protection is mandated in areas where the risk of electric shock is higher, such as bathrooms, kitchens, outdoor areas, and other wet locations.

GFCI devices monitor the current flow in the circuit and will disconnect the power if an imbalance is detected, which usually indicates that electricity is flowing through an unintended path, such as water or a person. This makes GFCI devices extremely important for protecting individuals from electrical shock.

AFCI (Arc Fault Circuit Interrupter) devices are designed to protect against electrical fires caused by arc faults, and they are not required for all 15- and 20-amp circuits, making this choice less applicable for the specific context of electric shock protection. Fuses and MCB (Miniature Circuit Breaker) are also protective devices but serve different functions; fuses and MCBs primarily protect against overcurrent situations, rather than focusing on ground faults.

Thus, the requirement for GFCI protection in specific areas of the home ensures enhanced safety in environments where the