Final answer:
According to NIMS, a safety officer is the individual in charge of managing safety at an incident and is a member of the command staff.
Step-by-step explanation:
The definition of a safety officer according to NIMS (National Incident Management System) is c) The individual responsible for managing safety at an incident. This person is a member of the Incident Command System (ICS) and is in charge of overseeing the safety aspect of the incident response, including monitoring and assessing hazardous and unsafe situations, and developing measures for assuring the safety of all personnel involved in the incident. As a member of the command staff, the safety officer has the authority to stop work or operations that are deemed unsafe and to provide recommendations and guidance to the Incident Commander regarding the safety of the operation.