Question: What is the unique feature of rack equipment shapes that would lead you to think that the rack and the equipment shape have active connections points?

1. They look like 2D shapes, yet behave like lines, dynamic connectors, and other one-dimensional shapes.
2. They look like 3D shapes, yet behave like lines, dynamic connectors, and other two-dimensional shapes.
3. They look like 2D shapes, yet behave like lines, dynamic connectors, and other three-dimensional shapes.
4. They look like 3D shapes, yet behave like lines, dynamic connectors, and other one-dimensional shapes.

Answer: The correct answer of the above question is Option A:They look like 2D shapes, yet behave like lines, dynamic connectors, and other one-dimensional shapes.