Is a doubly-linked list more or less efficient than a singly-linked list when we consider the worse-case scenario (Big-O complexity) for the following operations: Searching for an item in our list Inserting an item at the beginning of our list (prepend) Deleting an item at the beginning of our list (pop) Group of answer choices A. The extra pointer in the doubly-linked list makes all of these operations less efficient because we can traverse in either direction. B. The doubly-linked list and the singly-linked list actually have the same complexity for these operations.   C. The extra pointer in the doubly-linked list makes all of these operations more efficient because we can traverse in either direction.

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