A company is discarding a classified storage array and hires an outside vendor to complete the disposal. Which of the following should the company request from the vendor?

An inventory list details the items being disposed of but does not guarantee that the disposal was conducted securely or in compliance with regulations. While it can be useful for tracking purposes, it lacks the assurance that sensitive information has been properly handled and destroyed, making it insufficient as a standalone request.

Classification refers to the categorization of information based on its sensitivity but does not relate to the disposal process itself. While understanding the classification of the data is important, it does not provide any assurance that the vendor will dispose of the classified storage array securely or in accordance with required protocols.

Proof of ownership establishes that the company has the right to dispose of the classified storage array but does not address how the disposal will be conducted. Without assurance of proper disposal methods, merely proving ownership does not mitigate the risks associated with the potential exposure of classified information.