If A is a subset of B and B is a subset of C, then the cardinality of

1.	If A is a subset of B and B is a subset of C, then the cardinality of A ∪ B ∪ C is equal to:
A.	Cardinality of C.
B.	Cardinality of B.
C.	Cardinality of A.
D.	None of the above.
Answer» B. Cardinality of B.

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If A is a subset of B and B is a subset of C, then the cardinality of A ∪ B ∪ C is equal to:

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