Solution

The correct answer is 1) B A D C E G F H.

Key Points

• Inorder traversal of a binary tree visits nodes in the following order: left subtree, root node, right subtree.
• The provided sequence B A D C E G F H follows this rule, visiting the leftmost nodes first, then the root, and finally the rightmost nodes.

Additional Information

• Inorder traversal is used to get nodes of a binary search tree (BST) in non-decreasing order.
• This traversal method is used in many tree-related algorithms and problems.
• It is also useful in scenarios where the order of node processing matters, such as expression trees for arithmetic operations.