Logic :- The last seven letters are interchange from the first seven letters . According to the given information, The position of the first and eighth letters of the word ADMINISTRATION are interchanged. then, ADMINISTRATION → TDMINISARATION Similarly, the second and ninth letters are interchanged, TDMINISARATION → TRMINISADATION Similarly, The third and tenth, fourth and eleventh, fifth and twelfth, sixth and thirteenth and seventh and fourteenth letters are interchanged. ADMINISTRATION → TRATIONADMINIS The fourth letter from the right end will be I. Hence, the correct answer is "I".