What keyboard shortcut can be used to make the Source Monitor full-screen?

The correct keyboard shortcut to make the Source Monitor full-screen is the Grave key (`). This key, often found next to the number 1 key on a standard keyboard, is particularly useful in Adobe Premiere Pro to toggle full-screen mode for the Source Monitor.

When using editing software like Adobe Premiere Pro, maximizing the screen space for the Source Monitor can greatly enhance the editing experience by allowing editors to see their footage in detail without the distraction of the rest of the interface. Employing the Grave key allows for a quick and efficient way to focus solely on the media being worked on.

The other options do not serve this function in the context of Premiere Pro, highlighting the unique purpose of the Grave key for this specific task.