If Rectangle $1$ and Rectangle $2$ are properly connected by a line and you move Rectangle $1$ to a new location on your slide, what happens if you then use the Reroute Connectors command on the line?

The two rectangles are swapped $($or rerouted$).$

The line is updated $($or rerouted$)$ into the Elbow Connector line type.

The line is updated $($or rerouted$)$ into the Curved Connector line type.

The line is moved $($or rerouted$)$ to the two closest connection points between the two rectangles.