Question: Select each choice that is a true statement about null string. There may be more than one correct choice. ( a ) It has length

Select each choice that is a true statement about null string. There may be more than one correct
choice.
(a) It has length zero.
(b) It is a language over any alphabet.
(c) It is in for every alphabet .
(d) It is a string over the alphabet {0,1}.

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