Let L1, L2 be any two context-free languages and R be any regular language. Then which of the following is/are CORRECT?I. L1 ∪ L2 is context-freeII. L̅1 is context-freeIII. L1 – R is context-freeIV. L1 ∩ L2 is context-free

Let L1, L2 be any two context-free languages and R be any regular lang

1.	Let L1, L2 be any two context-free languages and R be any regular language. Then which of the following is/are CORRECT?I. L1 ∪ L2 is context-freeII. L̅1 is context-freeIII. L1 – R is context-freeIV. L1 ∩ L2 is context-free
A.	I, II and IV only
B.	I and III only
C.	II and IV only
D.	I only
Answer» C. II and IV only

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Let L1, L2 be any two context-free languages and R be any regular language. Then which of the following is/are CORRECT?I. L1 ∪ L2 is context-freeII. L̅1 is context-freeIII. L1 – R is context-freeIV. L1 ∩ L2 is context-free

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