MCQ
Q.
The regular expression denotes a language comprising all possible strings of even length over the alphabet (0, 1).
Correct Answer: D
Option 1 + 0(1+0)* ? It does not consider even length criteria for the question.
Option (0+1) (1+0)* ? It can so happen here that from the former bracket it takes 0 or 1 and takes null from the latter then it forms a string of odd length
Option (1+0) ? It gives either 1 or 0.
Hence Option (00+0111+10)* is the answer.