Which one is different from the rest? DG, HK, AC, LO

Which one is different from the rest? DG, HK, AC, LO

کون سا باقیوں سے مختلف ہے؟ ڈی جی، ایچ کے، اے سی، ایل او
Explanation

there is a difference of 3 in every option except the third option in which it is two.

A B C D E F G H I J K L M N O

Common Diagram 28.01.2020 D1