निम्नलिखित समूह में उस शब्द का चयन करें जो अन्य शब्दों से मेल नहीं खाता है: पेन, पेपर, बुक, विजडम (बुद्धिमत्ता)

Based on the 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)

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 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.)