What are the main applications of tree data structure?

1) Manipulate hierarchical data
2) Make information easy to search (see tree traversal).
3) Manipulate sorted lists of data
4) Router algorithms
5) Form of a multi-stage decision-making, like Chess Game.
6) As a workflow for compositing digital images for visual effects
(A) 1, 2, 3, 4 and 6
(B) 1, 2, 3, 4 and 5
(C) 1, 3, 4, 5 and 6
(D) 1, 2, 3, 4, 5 and 6


Answer: (D)

Explanation: See http://en.wikipedia.org/wiki/Tree_(data_structure)#Common_uses

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