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Question
Cardinality of an attribute is
Options:
A .  It is a memory buffer that is used to store data that is needed frequently by an algorithm in order to minimize input/ output traffic
B .  The number of different values that a given attribute can take
C .  A mathematical conception of space where the location of a point is given by reference to its distance from two or three axes intersecting at right angles
D .  None of these
Answer: Option B
Answer: (b)
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