If each consonant in the word TOLERANT is replaced by the previous letter in the English alphabet and each vowel in the word is replaced by the next letter in the English alphabet and the new set of letters are arranged alphabetically, which of the following will be the fourth from the right end after the replacement?

Among P, Q, T, A and B each having a different height, T is taller than P and B but shorter than A and Q. P is not the shortest. Who among them is the tallest?