You have a Microsoft Exchange Server 2019 organization that contains several thousand users. Most users connect to their mailbox by using a mobile device.
A new corporate security policy requires that when connecting from a mobile device, all users on devices that run iOS must use the Outlook mobile app only.
You need to modify the organization to meet the security requirement.
What should you do?
A. From the Exchange Management Shell, run the New-DeviceConditionalAccessPolicy cmdlet.
B. From the Exchange admin center, create a mobile device access rule.
C. From the Exchange Management Shell, run the New-DeviceConfigurationRule cmdlet.
D. From the Exchange admin center, modify the default mobile device mailbox policy.
