You have devices enrolled in Microsoft Intune as shown in the following table.

The correct answer is D because app configuration policies can be applied to managed devices and managed apps1. Managed devices are enrolled and managed by Intune, while managed apps are integrated with Intune App SDK or wrapped using the Intune Wrapping Tool1. Device2, Device3, and Device4 are either enrolled in Intune or have managed apps installed, so they can receive app configuration policies2. Device1 is not enrolled in any MDM solution and does not have any managed apps installed, so it cannot receive app configuration policies2. References: 1: App configuration policies for Microsoft Intune | Microsoft Learn https://learn.microsoft.com/en-us/mem/intune/apps/app-configuration-policies-overview 2: Policy sets - Microsoft Intune | Microsoft Learn https://learn.microsoft.com/en-us/mem/intune/fundamentals/policy-sets