If emp_id contain the following set {1, 2, 2, 3, 3, 1}, what will be the output on execution of the following MySQL statement?

SELECT emp_id
FROM person
ORDER BY emp_id;

A. {1, 1, 2, 2, 3, 3}

B. {1, 2, 3, 3, 2, 1}

C. {2, 2, 1, 1, 3, 3}

D. None of the mentioned

Answer: Option A