Which of the following is the correct way to dequeue an element from a queue in Python?Optionsqueue.pop()queue.remove()queue.pop(0)queue.dequeue()

Analyzing the Options

1. queue.pop(): This method is used to remove the last element from a list in Python, but a queue typically operates in a first-in-first-out (FIFO) manner, not last-in-first-out (LIFO). Therefore, this is not the correct method for dequeuing.

2. queue.remove(): This method removes the first occurrence of a value from the list but doesn't adhere to the FIFO nature of queues. It also does not specify which element to remove based on the order of addition, making it unsuitable for our needs.

3. queue.pop(0): This method removes and returns the first element from a list in Python. Since queues follow the FIFO principle, this option correctly represents a dequeue operation.

4. queue.dequeue(): Although this might seem like a correct method, it is not a standard method associated with Python’s built-in list structure or typical queue implementations unless defined in a custom queue class.

Conclusion

The correct way to dequeue an element from a queue in Python is given by the option queue.pop(0). This method ensures that the element added first to the queue is the one that gets removed first, adhering to the fundamental principle of a queue.