Explanation:
Box 1: Yes
You can manage Android devices in Microsoft Intune.
Use the Microsoft Endpoint Manager admin center Dashboard to display overall details about the devices and client apps in your Intune tenant. Dashboards provide a way for you to create a focused and organized view in the Microsoft Endpoint Manager admin center. Use dashboards as a workspace where you can quickly launch tasks for day-to-day operations and monitor resources.
Note: Microsoft Intune, which is a part of Microsoft Endpoint Manager, provides the cloud infrastructure, the cloud-based mobile device management (MDM), cloud-based mobile application management (MAM), and cloud-based PC management for your organization.
Box 2: Yes
Microsoft intune is not just for mobile devices, it can be used for laptop and desktop management as well.
Box 3: No
Microsoft Intune enables mobile device management for:
Personal devices, including personally owned phones, tablets, and PCs.
Corporate-owned devices, including phones, tablets, and PCs owned by your organization and distributed to employees and students for use at work or school.
Reference:
https://docs.microsoft.com/en-us/mem/intune/fundamentals/deployment-guide-platform-android
https://docs.microsoft.com/en-us/mem/intune/fundamentals/tutorial-walkthrough-endpoint- manager