Which Windows PowerShell cmdlet should you run?

You manage an Office 365 tenant that uses an Enterprise E1 subscription. You configure a retention policy for all mailboxes.
You must apply a new retention policy immediately because of upcoming personnel changes.
You need to ensure that the new retention policy is applied to the mailboxes immediately.
Which Windows PowerShell cmdlet should you run?
A. Enable-JournalRule
B. New-RetentionPolicyTag
C. Start-ManagedFolderAssistant
D. Set-CsUser
E. Set-CsPrivacyConfiguration
F. Set-HostedContentFilterPolicy
G. Set-MalwareFilterPolicy
H. Set-MailboxJunkEmailConfiguration