Which of the following reflects the duties of executors in relation to a deed of variation?

The duties of executors in relation to a deed of variation primarily involve administering the estate according to the changes stipulated in the variation. When beneficiaries execute a deed of variation, they effectively alter the distribution of the estate as originally outlined in the will. This means that the executors must ensure that the estate is administered in compliance with this new arrangement, reflecting the updated intentions of the beneficiaries.

This responsibility is significant because executors are tasked with implementing the will's provisions in a manner that aligns with the legally binding changes made through the deed of variation. Their role includes allocating assets according to the modified distribution, ensuring all relevant provisions in the new deed are adhered to, and managing any tax implications that may arise from the variation.

In relation to the other options, the duties to ensure the will is executed as originally intended do not hold if a valid variation exists, as the deed takes precedence. The option about managing property on behalf of a landlord is unrelated to the duties of executors concerning a deceased's estate. Lastly, while executors do often mediate disputes among beneficiaries, this is not a primary duty in the context of administering a deed of variation; their main obligation is to follow the altered instructions set forth in the variation itself.