Which of the regular expressions corresponds to the given problem sta – McqOptions

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1.	Which of the regular expressions corresponds to the given problem statement:P(x): Express the identifiers in C Programming languagel=lettersd=digits
A.	(l+_)(d+_)*
B.	(l+d+_)*
C.	(l+_)(l+d+_)*d) (_+
D.	(_+d)(l+d+_)*
Answer» D. (_+d)(l+d+_)*

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