Answer (Choose 1 answer)
A What is the breadth-first traversal of a tree below after deleting the node 15 by merging?
A. 30, 5, 40, 25, 35, 10, 20
B. 30, 5, 40, 10, 25, 35, 20
C. 30, 5, 40, 10, 35, 25, 20
D. 30, 25, 40, 5, 20, 10, 35
30
15
40
5
25
35
10
20
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Exit 15
