Which of the following is a valid way to implement a binary tree node in C++?

Which of the following is a valid way to implement a binary tree node in C++?

Step 1: Understand what a binary tree node is. A binary tree node has a value and can have up to two children: a left child and a right child.
Step 2: In C++, we can create a class to represent a binary tree node.
Step 3: Define the class with a name, for example, 'TreeNode'.
Step 4: Inside the class, declare a variable to hold the value of the node, usually an integer or any other data type.
Step 5: Declare two pointers: one for the left child and one for the right child. These pointers will point to other TreeNode objects.
Step 6: Make sure the member variables (value, left, right) are public so they can be accessed from outside the class.
Step 7: Optionally, you can add a constructor to initialize the node's value and set the left and right pointers to null.

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