M represents the children in a class who have no brothers and 8 represents the children who have no sisters. + denotes union, ∗ denotes intersection, and (′) denotes complement. The set of children who have no siblings is
A
S′+M′
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B
(S∗M)′
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C
(S+M)′
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D
S∗M
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Solution
The correct option is C(S+M)′ Solution
As per De Morgan's Law,
´(A∪B)=´A∩´B.
Correct answer is C, that is Set of children having no children.