Question: Which data model allows each child to have more than one parent and establishes parent - child relationships between data elements? Obiect Database Management System

Which data model allows each child to have more than one parent and establishes parent-child relationships between data elements?
Obiect Database Management System 1 C
Network Database Management System 2 O
Relational Database Management System 3 O
Hierarchical Database Management System
A O
Query-by-Example System 5 O

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