What is included in all mail endorsements for a deceased individual?

The inclusion of "Endorsement DECEASED and signature block" is essential in mail endorsements for a deceased individual because it properly communicates the status of the recipient to postal service personnel. This specific endorsement alerts postal workers that the individual is deceased, thereby preventing any further delivery attempts to that address for that person. Adding a signature block provides a formal acknowledgment of the endorsement, which could be from a relative or authorized representative, ensuring that the mail is handled appropriately in response to the change in circumstances.

The other elements listed, such as the date and sender's name, do not convey the necessary information regarding the deceased status or the proper handling of the mail. Including a forwarding address is also not applicable since the individual is no longer living and mail would not typically be forwarded to someone else under those circumstances. Hence, option B serves the critical purpose of ensuring that the communication of the recipient's death is clear and formally documented.