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Question
Given only the following excerpt of an E-R model:
Which of the following is known to be true?
A) There are more instances of ENTITY A than there are instances of ENTITY B in the user's environment.
B) A single instance of ENTITY B may be related to many instances of ENTITY A.
C) A single instance of ENTITY A must be related to many instances of ENTITY B.
D) ENTITY A has a minimum cardinality of one.
E) The degree of the relationship is "many."
Answer
This answer is hidden. It contains 1 characters.
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