Except 140 all other is divisible of 12.

Except 109 all other is divisible to 3.

Except 243, all of these are a perfect square number.

Except Option C, In all other sets, Second number = (first number ×4)-10

Option D remaining, all of these are (first number ×3-1)= second number.

In all other options, the second number is obtained by making 2.5 times of the first number.

Except option (C) all other have only one Vowel.