Final answer:
The person conducting a fire watch must wear protective equipment, carry a fire extinguisher, and be trained in emergency procedures, so the answer is all of the above.
Step-by-step explanation:
The person conducting a fire watch must fulfill several critical responsibilities to ensure safety. These include: wearing appropriate personal protective equipment, carrying a fire extinguisher at all times, and being trained in fire prevention and emergency procedures. Therefore, the correct answer to the provided question would be (4) All of the above. It is essential that a person on fire watch is prepared to handle a potential fire situation, which involves being knowledgeable and equipped to protect themselves and others in case an emergency arises. They should also be aware of fire safety equipment locations like the fire extinguisher and the eyewash station, and be ready to perform tasks such as searching buildings for victims and executing rescue operations.