Final answer:
The Devices report under "Mobile".
Step-by-step explanation:
The correct answer is D. The Devices report under "Mobile".
This report provides information on the mobile devices used to view a website. It can show data such as the type of device (such as iPhone or Android), the brand (such as Samsung or Apple), and the operating system version.
For example, if a website owner wants to know whether their site is optimized for mobile viewing, they can use the Devices report to see the percentage of users accessing the site from different mobile devices.