The following node are inserted sequentially in Binary search tree:- 30,3,50,10,5,70,80,75,60,45 what will be the preorder of above BST?

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Question:
The following node are inserted sequentially in Binary search tree:-
30,3,50,10,5,70,80,75,60,45
what will be the preorder of above BST?

1.30,3,10,5,50,45,60,70,75,80

2.No preorder exist

3.Preorder of every BST is in increasing order of numbers

4.30,3,10,5,50,45,70,60,80,75

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