Which one of the following is a traditional method for selection of personnel?

Answer: Option C

* Phrenology: This is an old, discredited, and now considered pseudo-scientific method that involved feeling the bumps on a person's skull to determine their personality traits and abilities. It was once used in personnel selection, but it is not a valid or reliable method today.

* Interview: This is a common and valid method where the interviewer asks question the interviewee.

* Selection Test: These are more of a modern and scientific way of selecting a candidates.

* Aptitude Test: These tests are used to measure a candidate's potential to perform a specific job. It is a common and useful method.