In a connection problem on Assembling Objects, what do the labeled points (such as A and B) on the shapes indicate?

In connection-type Assembling Objects problems, the small labeled points (like A and B) mark the exact spots on each shape where a connecting line must attach. The correct answer shows the same shapes joined by a line running from the labeled point on one shape to the labeled point on the other, with the shapes correctly oriented. Wrong answers typically attach the line to the wrong point, use the wrong shapes, or position the shapes incorrectly. The strategy is to track which labeled point belongs to which shape and confirm the line connects exactly those points. Careful attention to the connection points is the key skill.