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Question

Given grammar G:
S->aS|A|C

A->a

B->aa

C->aCb

Find the set of variables thet can produce strings only with the set of terminals.

a.

{C}

b.

{A,B}

c.

{A,B,S}

d.

None of the mentioned

Answer: (c).{A,B,S}

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Q. Given grammar G: S->aS|A|C A->a B->aa C->aCb Find the set of variables thet can produce strings only with the set of terminals.

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