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(A) Context-free languages are closed under union.
(B) Context-free languages are closed under concatenation.
(C) Context-free languages are closed under intersection.
(D) Context-free languages are closed under Kleene closure.

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CFL are not closed under Intersection and complement.

So option C is False.

Ex.

L1=anbncm   and L2=anbmcm

So L1∩L2= anbncn   which CSL not CFL.

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