please explain:
@sourav. it is 1* not 1+ so it is not necessary that every string will contain 1 in it.
All three options are wrong. if you follow Chomsky hierarchy, you get that all DCFL is also CFL. And a CFL is also a CSL.
L = L1 intersection L2
L = 0n1*0n
So L is CFL as well as CSL ,REL but not RL. As 0n1+0n is DCFL So option is D.
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