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

class Node: def __init__(self, value): self.value = value
class Node: def __init__(self, value): self.value = value; self.left = None; self.right = None
class Node: def __init__(self): self.value = None
class Node: def __init__(self, value): self.left = None; self.right = None

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

Step 1: Understand what a binary tree node is. A binary tree node has three main parts: a value, a left pointer, and a right pointer.
Step 2: Create a class in Python to represent the binary tree node.
Step 3: In the class, define an __init__ method to initialize the value, left pointer, and right pointer.
Step 4: Set the left and right pointers to None initially, as they will point to other nodes in the tree.
Step 5: Ensure that the class can be used to create instances of binary tree nodes.

No concepts available.