In all other groups, number in between is the sum of positions of both letters as in the alphabet.

Correct Option: D

In all other groups, number in between is the sum of positions of both letters as in the alphabet.

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

Correct Option: C

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

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

Correct Option: B

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

In all other groups, first letters is 3 steps ahead of the second and third letters is 4 steps ahead of the first.

Correct Option: D

In all other groups, first letters is 3 steps ahead of the second and third letters is 4 steps ahead of the first.

In all other groups, first and third letters are the consecutive letters of thye alphabet.

Correct Option: B

In all other groups, first and third letters are the consecutive letters of thye alphabet.