Which feature allows you to set a boundary for snapping between objects?

The feature that allows you to set a boundary for snapping between objects is Snap to Tolerance. This feature enables the user to define a specific area within which objects will snap to each other, providing more control over how closely shapes or symbols align. By adjusting the tolerance level, the user can ensure that objects will only snap if they are within a certain distance, making it easier to create precise layouts without unintentionally aligning objects too closely or incorrectly.

The other features, while useful in their own right, serve different purposes. Snap to grid is utilized for snapping objects to a predefined grid layout, ensuring even spacing and alignment according to the grid lines. Snap to pixels is focused on aligning objects to the pixel grid, which is particularly important for ensuring sharpness and clarity in raster graphics. Snap to alignment typically refers to aligning objects with other selected objects based on their edges or center points, but it does not provide the same kind of customizable boundary that Snap to Tolerance does.