you peform weekly backups, Sunday at $1$AM$,$ of a webserver that was defaced. The incident was detected on Wedsnesday, but the attacke happened during the weekend.

What backiup would you restore $?$

a$.$ the back up of Tuesday

b$.$ The backup of the previous Sunday woth respect to the incident

c$.$ the backupof last Sunday at $1$AM

d$.$ Whatever is the most recent backup.