Is it possible to modify the CyberArk Vault Audit Log?

Is it possible to modify the CyberArk Vault Audit Log?
A . Yes, a Vault administrator can modify the Audit log
B . No, the audit trail is tamper proof and cannot be edited, not even by Master
C . Yes, but only the Master user can modify the Audit log
D . Yes, a Vault administrator can edit the Audit log but only with explicit permission from CyberArk

Answer: B