How many children can each node in a tree have?

In a tree data structure, each node can have zero or more children, which means that there is no upper limit on the number of children a single node can possess. This flexibility allows for the representation of various types of hierarchical relationships.

For instance, in a binary tree, each node is restricted to a maximum of two children (known as left and right children). However, in more generalized tree structures such as n-ary trees or multi-way trees, a node can have any number of children, which aligns with the concept presented in the correct response.

This characteristic of trees makes them versatile for different applications, such as representing file systems, organizational structures, and other hierarchical data representations. Therefore, understanding that a node can indeed have zero or more children provides a broader perspective on how trees can be utilized in programming and data organization.