

MCQOPTIONS
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1. |
Consider the set B* of all strings over the alphabet set B = {0, 1} with the concatenation operator for strings ________ |
A. | does not form a group |
B. | does not have the right identity element |
C. | forms a non-commutative group |
D. | forms a group if the empty string is removed from |
Answer» B. does not have the right identity element | |