Which action is performed by dragging the playhead during a Rolling Edit?

Dragging the playhead during a Rolling Edit allows you to simultaneously adjust the In and Out points of two adjacent clips. This means that as you move the playhead, one clip's Out point is extended or moved while the neighboring clip's In point is also adjusted to maintain the overall duration of the sequence. This technique is useful for refining transitions between clips without altering the overall timeline length. By dragging the playhead to a new location, you are essentially setting a new position for these In and Out points, which is why this action is accurately described as extending the clip In or Out point to the playhead location.

The other options describe different functions that do not pertain to the Rolling Edit action:

• Applying a fade transition is a separate operation that involves adding effects rather than adjusting the points of existing clips.

• Inserting a new clip at the playhead involves adding content rather than repositioning existing content.

• Deleting all clips after the playhead is a more destructive action that would alter the structure of the timeline rather than a simple edit of adjacent clip points.