A company performs a full backup on the first Sunday of the month followed by a cumulative backup on all other Sundays. In addition, they perform an incremental backup each day, that is, Monday…

A company performs a full backup on the first Sunday of the month followed by a cumulative backup on all other Sundays. In addition, they perform an incremental backup each day, that is, Monday through Saturday. Tapes are sent offsite for archiving every day at 11 P.M. However, the company experiences a system crash on the Wednesday of the third week at 2 P.M. This incident requires a full system restore. How many backups need to be retrieved in order to perform a restore?