

MCQOPTIONS
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1. |
The set of all strings over = {a,b} in which all strings having bbbb as substring is? |
A. | (a+b)* bbbb (a+b)* |
B. | (a+b)* bb (a+b)*bb |
C. | bbb(a+b)* |
D. | bb (a+b)* |
Answer» B. (a+b)* bb (a+b)*bb | |