In a doubly linked list, which pointer of a node points to the previous node?nextprevpreviousback

How is the last node identified in a doubly linked list?It points to `None`.It has a special flag.It has a reference to the first node.It has a pointer to the previous node.

A linked list whose last node points back to both the head node and the previous node instead of containing the null pointer ____________

What additional pointer does a node in a doubly linked list have compared to a node in a singly linked list?a.A pointer to the next nodeb.A pointer to the head nodec.A pointer to the tail noded.A pointer to the middle nodee.A pointer to the previous node

In a doubly linked list, what’s the “tail” of a linked list?It’s the node with the pointer to the previous node equal to NULLIt’s the node with the pointer to the next node equal to NULL

How is the last node of a Doubly Linked List identified?a)It contains a special value indicating the end.b)It points to NULL in the previous field.c)It points to NULL in the next field.d)It points to the first node.