A camera and supervisor do not have to be present to start what?

Life-saving procedures can be initiated without the presence of a camera or a supervisor because these actions often require immediate intervention to prevent loss of life or significant harm to an individual. In emergency situations, such as medical crises, time is of the essence, and responders are trained to act quickly to provide the necessary care, prioritizing the health and safety of individuals over procedural formalities.

In contrast, other choices might involve documentation, oversight, or non-emergency protocols that typically require supervision or recording for accountability, ensuring procedures are followed correctly. Thus, the urgent nature of life-saving procedures justifies the ability to begin them independently of additional oversight.