1.

Consider the grammar where P, Q, R are not terminals and r, s, t are terminals a. P->Q R b. P->Q s R c. P->ε d. P->Q t R r The grammar rules that violate the requirements of an operator grammar is

A. a and c only
B. b and c only
C. a and d only
D. a only
Answer» B. b and c only


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