Suppose the numbers 7, 5, 1, 8, 3, 6, 0, 9, 4, 2 are inserted in that order into an initially empty binary search tree. The binary search tree uses the usual ordering on natural numbers. What is the in-order traversal sequence of the resultant tree?
- A.9 8 6 4 2 3 0 1 5 7
- B.0 2 4 3 1 6 5 9 8 7
- C.7 5 1 0 3 2 4 6 8 9
- D.0 1 2 3 4 5 6 7 8 9
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Answer: D. 0 1 2 3 4 5 6 7 8 9
In-order traversal of a binary search tree always yields elements in ascending sorted order.