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MCQ (Single Correct Answer)
GATE CSE 2005
Let L1 be a recursive language, and let
L2 be a recursively enumerable but not a recursive language. Which one of the following is TRUE?
L1' - Complement of L1 L2' -- Complement of L2
(A) L1′ is recursive and L2′ is recursively enumerable(B) L1′ is recursive and L2′ is not recursively enumerable(C) L1′ and L2′ are recursively enumerable(D) L1′ is recursively enumerable and L2′ is recursive
