....is the right answer.....if u read the sentence ....it says if u address someone as "personal" manager....u are unlikely to get a job as professor of english....bcos 'personnel' is the right choice of word.
i STRONGLY FEEL THE PERSONNEL MANAGER IS THE CORRECT ANSWER AS HE IS THE ONE WHO HANDLES THE PERSONNEL NEEDS OF A COMPANY, NOT THE PERSONAL MANAGER, SUCH A DESIGNATION DOESN'T EXIST EXCEPT FOR AN ACTOR, SINGER ETC WHO HANDLES HIS AFFAIRS ONLY!