Electric motor and controllers for pool covers should be installed in a manner that is _____.

The correct response is that electric motors and controllers for pool covers should be installed in a manner that is GFCI protected. This requirement is in alignment with safety measures outlined in the National Electrical Code, particularly regarding areas in proximity to water. GFCI (Ground Fault Circuit Interrupter) protection is essential because it helps prevent electric shock by quickly disconnecting power when it detects an imbalance between incoming and outgoing current. Given the wet environment of a pool area, having GFCI protection mitigates the risk of electrical hazards significantly.

While waterproofing, proper grounding, and insulation are important considerations for electrical installations in pool areas, they do not specifically address the immediate safety concern of electric shock that GFCI protection provides. Waterproofing helps protect equipment from water exposure, grounding is crucial for reducing the risk of electrical faults, and insulation can help protect against accidental contact. However, in the context of directly preventing shock risks associated with the unique environment of pools, GFCI protection is paramount.