Final answer:
Track lighting cannot be installed in wet or damp locations, or where it can be subject to physical damage or concealed, according to NEC regulations to ensure safety.
Step-by-step explanation:
Track lighting cannot be installed in wet or damp locations, where subject to physical damage, or in concealed locations. The correct answer to this question is option (a) cannot. Track lighting, like all electrical fixtures, must be installed in accordance with the National Electrical Code (NEC) regulations. If installed in inappropriate places, it could lead to safety hazards, including electrical shorts, corrosion, or even fires. Therefore, it is crucial to adhere to the recommended installation guidelines to ensure safety and proper functioning of the lighting system.