You have an Exchange Server 2013 on-premises organization and a Microsoft Office 365 tenant.
All mailboxes are hosted on-premises.
You need to implement an archiving solution for all users. The solution must ensure that all mailbox
content older than 18 months is moved to Personal Archives in Office 365.

What should you implement?

A.
A default policy tag (DPT)

B.
A retention policy

C.
A personal tag

D.
A retention policy tag (RPT)

E.
A retention hold