To traverse a doubly linked list, you typically start from:Group of answer choicesEither the tail node or the head nodeAny nodeThe head nodeThe tail node

To determine the starting point for traversing a doubly linked list, let's analyze the characteristics of a doubly linked list.

1. Understanding Doubly Linked Lists: A doubly linked list consists of nodes where each node contains three parts: data, a pointer to the next node, and a pointer to the previous node. This structure allows traversal in both directions—forward and backward.

2. Starting Points for Traversal: When it comes to traversing a doubly linked list, the traversal typically begins at:

   • The head node, which is the first node in the list. Starting from the head allows you to move in the forward direction through all the elements until you reach the end (tail).
   • The tail node can also be an option for starting traversal if one wishes to traverse the list in reverse.

3. Options Analysis:

   • Either the tail node or the head node: This is not a definitive answer since traversal usually starts from the head.
   • Any node: This is incorrect as standard practice usually focuses on starting from the head or tail.
   • The head node: This is the common practice and correct answer for most cases.
   • The tail node: This is not the typical starting point for traversal unless reverse traversal is needed.

Final Answer

The head node is the typical starting point for traversing a doubly linked list. Thus, the correct choice is: The head node.