Three of the following four in the given question are alike in a certain way and so form a group. Select the group of letters that does not belong to that group.
In each group, two alphabets in the corner and two alphabets in the centre correspond to their reverse order positioned alphabet. i.e., natural order  A B C D E F G H I J K LM reverse order  Z Y X W V U T S R Q P O N natural order  N O P Q R S T U V W X Y Z reverse order  M L K J I H G F E D C B A As such— D corresponds with W and C corresponds with X. B corresponds with Y and A corresponds with Z. H corresponds with S and G corresponds with T. Similarly, F should correspond with U and E should correspond with V; i.e. letters ‘UV’ should be written as ‘VU’