Question: Write the regular expression as a regular set. S ' = a ^ + ( aUb ) ^ * b ^ + Which of the

Write the regular expression as a regular set.
S'= a^+(aUb)^*b^+
Which of the following correctly represents the language given by S?
1. Set of all strings that start with a
2. Set of all strings that end with b
3. Set of all strings that start with a and end with b
4. Set of all strings in \Sigma *
5. None of the above

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