Final answer:
The safety officer is the person who accompanies workers on the roof to warn workers who get too close to the edge.
Step-by-step explanation:
The person who accompanies workers on the roof to warn workers who get too close to the edge is The Safety Officer. The Safety Officer is responsible for ensuring the safety of workers on the roof and preventing accidents or falls. They supervise the work and make sure workers follow safety protocols, including staying away from the edge.