Which action is known as hover scrubbing in Premiere?

Hover scrubbing in Premiere refers to the action of moving the cursor across a clip in the timeline without clicking. This technique allows users to preview different sections of a clip by simply hovering the cursor above it, thus enabling them to get a quick glimpse of the content without needing to stop and click to play. It is particularly useful for quickly navigating through the media to find specific points of interest or to check how a particular section of a clip appears before making any edits.

The other actions mentioned do not align with the definition of hover scrubbing; for example, hovering the cursor over the timeline is too generic and does not involve interaction with a specific clip. Clicking and dragging typically refers to moving or adjusting elements rather than previewing content, while pressing the space bar while dragging denotes a different functionality that involves actual play and control rather than scrubbing through content visually.