If an item set â€˜XYZâ€™ is a frequent item set, then all su – McqOptions

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1.	If an item set â€˜XYZâ€™ is a frequent item set, then all subsets of that frequent item set are
A.	undefined
B.	not frequent
C.	frequent
D.	can not say
Answer» D. can not say

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