चार अक्षर-समूह दिए गए हैं, जिनमें से तीन किसी न किसी तरह से समान हैं और एक भिन्न है। उस अक्षर-समूह का चयन करें जो भिन्न है।

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which is the letter-cluster pair that DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

Based on the English alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that does not belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)