अक्षरों के उस संयोजन का चयन कीजिए जिसे दी गई श्रृंखला के रिक्त स्थानों में क्रमिक रूप से रखने पर श्रृंखला पूरी हो जाएगी। E O _ _ E O K Y _ O _ Y E _ K

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

Which letter-cluster will replace the question mark (?) in the following series? HEA, JGC, LIE, ?