$setIsSubset returns _______ if all elements of the first set appear in the second set, including when the first set equals the second set.

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1.	$setIsSubset returns _______ if all elements of the first set appear in the second set, including when the first set equals the second set.
A.	Null
B.	True
C.	False
D.	None of the mentioned
Answer» D. None of the mentioned

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