When building hierarchies and flow processes using lines and shapes, what is the natural connection point of a shape used for?

The natural connection points of a shape are where shapes naturally snap together when you place them next to each other in a graphic.

The natural connection points of a shape are what Smart Guides use to judge the distances between your shapes.

The natural connection points of a shape are where lines can be locked into the shape, so that the lines move and automatically adjust as the shape moves.

The natural connection points of a shape are the white circles found on the corners of shapes you can use to quickly resize the shape with your mouse