In all other groups, there is a gap of two letters between second and third letters as in the alphabet.

Correct Option: D

In all other groups, there is a gap of two letters between second and third letters as in the alphabet.

In all other groups, there is a gap of two letters between first and second letters as in the alphabet.

Correct Option: D

In all other groups, there is a gap of two letters between first and second letters as in the alphabet.

In all other groups, letters adjacent to the middle one are equidistant from in the alphabet.

Correct Option: D

In all other groups, letters adjacent to the middle one are equidistant from in the alphabet.

In all other group of letters, there is no gap between first and second letters, gap of one letter between second and third letter, gap of two letters between third and fourth letters.

Correct Option: C

In all other group of letters, there is no gap between first and second letters, gap of one letter between second and third letter, gap of two letters between third and fourth letters.

In all other groups, there is a gap of one leter as in the alphabet between first abd second letters.

Correct Option: B

IN all other groups, there is a gap of one leter as in the alphabet between first abd second letters.