How should you complete the relevant Windows PowerShell script?

Explanation/Reference:
Explanation:
In-Place Archiving helps you regain control of your organization’s messaging data by eliminating the need for personal store (.pst) files. With archiving enabled, users can store messages in an archive mailbox, also called an In-Place Archive, which is accessible by using Microsoft Outlook and Outlook Web App.
In this question, we use the Get-Mailbox cmdlet to retrieve a list of all mailboxes.
The -Filter {(RecipientTypeDetails -eq ‘UserMailbox’)} option is used to retrieve a list of user mailboxes only (thus excluding Room mailboxes, Resource mailboxes etc).
The Enable-Mailbox -Archive command is used to create an archive for each user mailbox returned by the Get-Mailbox command.
References:
https://technet.microsoft.com/en-us/library/jj984357(v=exchg.150)