What should you do first?

You have a hybrid deployment of Microsoft Exchange Server 2019.

Users in your company’s sales department have on-premises mailboxes and PST files.

You need to migrate the PST files to archive mailboxes. The archive mailboxes must reside in Exchange Online.

What should you do first?
A . From Exchange Management Shell, run the Enable-Mailbox cmdlet and specify the -Archive parameter.
B . From Exchange Management Shell, run the New-MoveRequest cmdlet.
C . From Exchange Online PowerShell, run the Set-Mailbox cmdlet and specify the -ArchiveStatus parameter.
D . From Exchange Online PowerShell, run the New-Mailbox cmdlet and specify the -Archive parameter.

Answer: A

Explanation:

References: https://docs.microsoft.com/en-us/powershell/module/exchange/enable-mailbox?view=exchange-ps