Which of the following is a negligent cause of action related to supervision?

In the context of supervision-related negligent causes of action, all options listed are significant components that can lead to a claim of negligence if they are not managed appropriately.

Training refers to the responsibility of ensuring that individuals under supervision are adequately trained to perform their duties safely and effectively. Inadequate training can result in harm, as it leaves individuals unprepared to handle responsibilities that could impact public safety or the well-being of others.

Entrustment involves the decision to allow someone to use or operate equipment or vehicles. If an individual is not qualified or is known to be unfit for the task, entrusting them with such responsibilities can lead to negligent behavior resulting in accidents or harm.

Retention pertains to the ongoing responsibility of keeping an employee or trainee in a position despite knowing that they are unfit for the role. If an organization fails to act on information that an employee poses a risk to others, this can also result in claims of negligence.

Each of these elements—training, entrustment, and retention—plays a vital role in the supervision process and can independently lead to negligent actions if not properly executed. Therefore, identifying all as negligent causes of action highlights the comprehensive nature of supervision responsibilities and the potential legal implications of failing in these areas.