What must be kept for a minimum of 5 years as per identification requirements?

The correct choice highlights that records of identification must be retained for a minimum of five years as part of compliance with Missouri's funeral laws and regulations. This requirement is essential for ensuring that proper identification protocols have been followed when dealing with the remains of deceased individuals. It facilitates accountability and transparency within funeral practices.

Maintaining these records is crucial not only for legal compliance but also for the protection of both the funeral practitioner and the families they serve. In cases where disputes arise about the identification of the deceased, having these records readily available can be vital for resolution and verification purposes.

In contrast, while documents like a deceased's will, financial records, and death certificates are important, they do not carry the same specific retention requirement of five years according to state laws concerning identification procedures in funeral services.