NSA cyber weapon $--$ DanderSpritz is a tool capable of covering individual records from Windows Event Log files. However, from a digital investigator's perspective, $\_\_\_\_\_\_\_\_.$

a$)$ the removed Event can be recovered by searching the magic number of log event.

b$)$ the removed Event can be recovered by searching keyword "DSpritz".

c$)$ the removed Event record has been zeroed out.