Which of the following statements is false?
a. A JavaFX GUI is defined as a scene graph—a tree structure of an app's visual elements, such as GUI controls, shapes, images, video, text and more.
b. Each visual element in the scene graph is a node—an instance of a subclass of Node (package ), which defines common attributes and behaviors for all nodes in the scene graph.
c. The first node in the scene graph is known as the origin.
d. Nodes that have children are typically layout containers that arrange their child nodes in the scene.