What should you do first?

You need to prepare for the deployment of the Phoenix office computers.

What should you do first?
A . Generalize the computers and configure the Mobility (MDM and MAM) settings from the Azure Active Directory admin center.
B . Extract the hardware ID information of each computer to a CSV file and upload the file from the Microsoft Intune blade in the Azure portal.
C . Extract the hardware ID information of each computer to an XML file and upload the file from the Devices settings in Microsoft Store for Business.
D . Extract the serial number information of each computer to a CSV file and upload the file from the Microsoft Intune blade in the Azure portal.

Answer: A

Explanation:

Reference: https://docs.microsoft.com/en-us/windows/deployment/windows-autopilot/existing-devices