Answer:
C) An in-person interview
Explanation:
All the options listed, the best choice to determine a candidate's trusworthiness is the in-person interview. An in person-interview allows the interviewer to get to know the candidate better, because open-ended questions can be made about the candidate's proffesional and personal life.
In this type of interview, it is the job of the interviewer to analyze the answers, and reach a conclusion that can determine whether the person is to be trusted or not.