Given a grammar in GNF and a derivable string in the grammar with the length n, any ___________will halt at depth n.(a) top-down parser(b) bottom-up parser(c) multitape turing machine(d) none of the mentionedI have been asked this question by my college professor while I was bunking the class.The query is from CFL- Other Normal Forms in section Properties of Context Free Languages of Automata Theory

Given a grammar in GNF and a derivable string in the grammar with the

1.	Given a grammar in GNF and a derivable string in the grammar with the length n, any ___________will halt at depth n.(a) top-down parser(b) bottom-up parser(c) multitape turing machine(d) none of the mentionedI have been asked this question by my college professor while I was bunking the class.The query is from CFL- Other Normal Forms in section Properties of Context Free Languages of Automata Theory
Answer» The CORRECT option is (a) top-down parser Easy explanation: GIVEN a grammar in GNF and a derivable STRING in the grammar with the length n, any top-down parser will halt at depth n. As the parameter ‘depth’ is mentioned, we will USE a top-down parser. Example-LL parser.

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