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MCQ (Single Correct Answer)
GATE CSE 2019
Consider the following sets:
S1: Set of all recursively enumerable languages over the alphabet {0, 1}.
S2: Set of all syntactically valid C programs.
S3: Set of all languages over the alphabet {0, 1}.
S4: Set of all non-regular languages over the alphabet {0, 1}.
Which of the above sets are uncountable?(A) S1 and S2(B) S3 and S4(C) S1 and S4(D) S2 and S3
