The correct answer is B. Preparing questions that demonstrate your interest in a job
Explanation:
One of the most important aspects during an interview is to show the employer or interviewer your interest for the job, and that you are suitable for the job position you are applying; this is important because it increases your chances to be hired. Moreover, this can be achieved through preparation before the interview that includes thinking about common questions asked during interviews and proper answers to them that show both your interest and abilities for the job. According to this, the statement that describes a key element to a successful interview is "Preparing questions that demonstrate your interest in a job".
