Option B. Corroborative evidence is the best answer because the question describes logs, metadata, and timestamps being used to support and confirm what happened during the incident. CHFI v11 explicitly includes metadata investigation , event logs , timeline and kill chain analysis , and reconstruction of user or system activity through forensic artifacts.
This kind of evidence often does not stand alone as a complete confession-like proof, but it is extremely valuable because it corroborates the sequence of events, supports witness statements, confirms access patterns, and links actions across different systems. For example, file timestamps, logon events, and application logs can help show that a suspect account accessed a document, used a device, or connected to a system at a particular time. That is exactly the role of corroborative evidence.
Option A would help clear the suspect, which is not the focus here. Option C is too absolute because the question emphasizes supporting and reconstructive value. Option D is too narrow. Therefore, under CHFI evidence-analysis principles, the logs, metadata, and timestamps described here serve primarily as corroborative evidence .