Which of the following statements is true for the given Regular Expression?…

2025

Answer: D. The set of strings whose 5th symbol from the end is b

1. A.

   The set of strings containing ab as a substring

2. B.

   The set of strings whose length is divisible by 6

3. C.

   The set of strings having at most one pair of consecutive a’s and at most one pair of consecutive b’s

4. D.

   The set of strings whose 5th symbol from the end is b

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