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An n-array relationship is drawn using which symbol:

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An n-array relationship is drawn using which symbol:

(a) A diamond

(b) A line with arrows showing direction

(c) A line without arrows showing direction

(d) A rectangle

I had been asked this question in a national level competition.

I need to ask this question from Attribute, Tuple and Entity topic in division Planning Oracle Applications of Oracle

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The correct option is (a) A diamond

Explanation: When a single parent-child relationship exists, the relationship is called binary. All of the previous examples of relationships to this point have been binary relationships. However, when creating a data model, it is not uncommon to come across n-array relationships, the modeling name for relationships between two or more parent entities and a single child table.

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