Answer:
c. smiling at an applicant to suggest a desired answer
Step-by-step explanation:
Telegraphing is the process of passing an information across over a long distance by means of signals which could be a radio signal or electricity signal. In the case of telegraphing during interview, it is the passing of information across to an applicant by the interviewer through signal.
A process whereby a n interviewer smiles towards an applicant indicating a good answer is an example of interview telegraphing.