The ____ represents the empty nonterminal.
A) zero
B) null string
C) asterisk
D) vertical line

Question

Quizplus · Accepted Answer

The null string refers to a string with no symbols in it. In the context of a grammar, it refers to a rule that can produce an empty string of symbols, which is represented by the blank symbol or the empty set (∅). This is often denoted by ε or λ. Therefore, the blank symbol represents the empty nonterminal in a grammar.

The ____ Represents the Empty Nonterminal