A customer performs a full backup on the first Sunday of the month followed by a cumulative backup on the other Sundays. The customer also performs an incremental backup each day Monday through Saturday. Assume that the backup is taken in the morning and sent offsite for disaster recovery every morning at 10 a.m.

The customer experiences a system crash on the Friday of the fourth week at 3 p.m., requiring a system recovery. Identify the days worth of tapes needed and the granularity of each tape to be retrieved to perform a recovery?