Electronic evidence must be shown to be what it purports to be. In Canadian evidence law principles commonly referenced in NPPE materials, authentication of an electronic record generally involves demonstrating the reliability and integrity of the electronic records system used to create, transmit, receive, and store the record. This includes showing that the system was operating properly, that access controls and audit trails exist as appropriate, and that the record has not been altered. Option A captures this requirement:
proving the integrity of the system that created and stored the document. Options B, C, and D do not establish authenticity. A signed letter explaining why evidence is presented (B) is not proof of authenticity; prior cases (C) do not prove the specific record is genuine; and "likelihood of success" (D) is irrelevant to admissibility.
Therefore, A is correct.