Which of the following BEST describes Microsoft Tunnel for Intune?

a. A tool that helps you keep track of devices, whether they are company-owned or BYOD, on Windows or Mac, ISO or Android.
b. A cloud-based service that focuses on mobile device management (MDM) and mobile application management (MAM).
c. A VPN solution that allows users to securely access corporate resources from outside the corporate network using their mobile devices or PCs
d. A service that allows you to pre-configure new Windows devices before they are delivered to end users.