In a code language any letter which is immediately after or before a vowel in the English alphabet is substituted by that vowel and any vowel, i.e. A, E, I, O and U, is substituted hy the letter immediately preceding that vowel in the English alphabet. How can the word PERAMBULATOR be written in that language?
1) ODRZMATLZUNR
2) ODPZMATLZUNR
3) OFRZMATLZUNR
4) ODRZNATLZUNR
5) None of these

Explanation

1