Correct Answer - Option 2 : 27th and 26th

Total number of students in the class = 39

Rank of Ravi from the top = 13th

Total number of students = Rank of a person from top + Rank of the same person from bottom - 1

So, his rank from the bottom = (39 - 13) + 1

= 27th

Rank of Kishor from the top = 14th

So, his rank from the bottom = (39 - 14) + 1

= 26th

Hence, ‘**27th and 26th**’ is the correct answer.