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Tree structures are used to store data in

  • A.Network model.
  • B.Relational model.
  • C.Hierarchical model.

  • D.File based system.

Answer: C

Correct answer: Hierarchical model.

The hierarchical model arranges records in a tree, each child having exactly one parent. The network model uses a graph, which allows several parents, and the relational model uses tables with no structural links at all.

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