Solved

You Are Given an E-R Diagram with Two Entities,ORDER and CUSTOMER,as

Question 10

Multiple Choice

You are given an E-R diagram with two entities,ORDER and CUSTOMER,as shown above.What does the symbol next to the ORDER entity indicate?

A) A maximum cardinality of "zero"
B) A maximum cardinality of "one"
C) A minimum cardinality of "optional"
D) A minimum cardinality of "required"

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