If L1, L2 are regular and op(L1, L2) is also regular, then L1 and L2 – McqOptions

MCQOPTIONS

1.	If L1, L2 are regular and op(L1, L2) is also regular, then L1 and L2 are said to be ____________ under an operation op.
A.	open
B.	closed
C.	decidable
D.	none of the mentioned
Answer» C. decidable

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