Once the job description and job specifications were written for a new marketing assistant position in his department, Eric called his HR specialist to proceed with the next step in the process of making a successful hire. After providing a timeframe for qualified persons to apply for the job, the next step in the selection process is best described as:
A. conducting background investigations.
B. obtaining results from physical exams.
C. conducting initial and follow-up interviews.
D. establishing trial and probationary periods.