Certkiller .com has two retention classes on their governance cluster:
Emails set to 5 years Forecasts set to 2 years Certkiller .com auditors ask to have all emails kept for a minimum of 7 years.
How can Certkiller .com change the retention period for all the data written to the cluster using the “Emails” retention class?

A.
All data must be read and written back with a new retention class

B.
Nothing can be done, the retention period is fixed

C.
Certkiller .com can change the “Emails” retention class to 7 years

D.
Certkiller .com can delete the “Emails” retention class