If the second letter of each word (from the left end) is replaced by the second succeeding letter according to the English alphabetical series and the second letter of each word (from the right end) is replaced by the third preceding letter according to English alphabetical series, and the remaining letters are replaced by the succeeding letters according to English alphabetical series, then all the letters within the words thus formed are arranged in alphabetical order. Then the resultant of which of the following words has atleast one vowel on the last two positions?

I. DFAFEC

II. HECDGB

III. CFBEHA