Answer:
valid data type.
Explanation:
When we create a class it becomes a valid data type that we can use in our program.The class data type can be used as a pointer.One such example that we use most often is the Linked List Nodes.First we create a class name Node and then create a pointer of type Node which points top another Node.
There are other examples also such as:-
Binary tree Nodes,Binary search tree Nodes etc.
