Final answer:
Good Samaritan laws generally apply to off-duty personnel and dual-certified fire/EMS professionals offering assistance in emergencies.
Step-by-step explanation:
Good Samaritan laws generally apply to situations B and C, personnel responding to an emergency while off duty, and dual-certified fire/EMS professionals stopping at a scene after responding to a house fire.
These laws provide legal protection to individuals who offer assistance at the scene of an emergency or accident. They are meant to encourage bystanders to provide aid without fear of being sued for any harm they may cause unintentionally.
In the situations mentioned, both off-duty personnel and dual-certified professionals are protected by Good Samaritan laws as they are offering voluntary assistance in emergency situations.