The set of all strings over ? = {a,b} in which strings consisting a's – McqOptions

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1.	The set of all strings over ? = {a,b} in which strings consisting a's and b's and ending with in bb is
A.	ab
B.	a*bbb
C.	(a+b)* bb
D.	All of the mentioned
Answer» D. All of the mentioned

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