Final answer:
The employer's mention of both the positive and challenging aspects of a job is an example of Realistic Job Preview in recruiting, which offers candidates a balanced view to help them make an informed decision.
Step-by-step explanation:
When Mark applied for a job as an engineer in a small town in northern Canada and was told about the good pay but also the potential loneliness and cold in the winter, the employer was using a Realistic Job Preview (RJP). An RJP is a recruiting approach that provides both positive and negative information about the job to the candidate, helping them to make an informed decision about whether or not to accept the job offer, if extended. By presenting both the good (pay) and the potentially challenging aspects (loneliness and cold) of the job, the employer is not using a Positive Appeal, which would focus only on the benefits, nor are they conducting a Job Analysis, which is the process of examining a job in detail to identify its tasks, responsibilities, and requirements. The information also does not indicate that the employer is engaging in External Recruitment, which is the process of seeking new employees from outside the organization.