Solution

The correct answer is option 3: D, A, B, C, E

Key Points

Inorder traversal of a binary tree is a type of depth-first traversal where nodes are visited in the following order:

• Step 1: Start traversing by visiting the nodes in the rooted tree.
• Step 2: Visit the Left subtree.
• Step 3: Visit the Root node.
• Step 4: Visit the Right subtree.
• Step 5: Repeat the above three steps for each subtree.