6
3
8
1
4
7
9
2
(Choose 1 answer)
Given a binary search tree T below. What is a result of breadth-first traverse of T after you delete by merging the node 3?
A. 6, 1, 8, 2, 4, 7.9
B. 6, 2, 1, 4, 8, 7, 9
C. 6, 2, 8, 1, 4, 7, 9 1.4.7.9
D. 6, 1, 8, 2, 7, 9, 4
30
