What is the worst case time complexity to access an element in a binary search tree?

O (n) Explanation: Correct Option: (A) Explanation In a Binary Search Tree (BST) , the time complexity of searching (or accessing) an element depends on the height of the tree. Average Case: For a balanced binary search tree, the search takes time, as you eliminate half of the remaining tree with each comparison. Worst Case: The worst case occurs when the tree is "unbalanced" (specifically, when it resembles a linked list, where every node has only one child). In this scenario, the height of the tree becomes , and you may need to traverse every single node to find the target element. This happens because the depth of the tree in the worst case is:

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