The correct answer is C. Sales promotion.
Human resource management (HRM) is a strategic and operational approach to the effective management of people in an organization, encompassing all aspects of employment relationships. HRM is concerned with the attraction, selection, development, motivation, and retention of employees.
Job evaluation is a systematic way of determining the value of jobs within an organization. It is used to establish pay rates and to compare jobs for the purpose of staffing and promotion.
Performance appraisal is a process of evaluating the performance of employees. It is used to identify areas where employees need to improve, to provide feedback, and to make decisions about pay and promotions.
Job enrichment is a process of increasing the level of responsibility and challenge in a job. It is designed to increase employee motivation and satisfaction.
Sales promotion is a marketing activity that is used to stimulate demand for a product or service. It can include activities such as advertising, coupons, and discounts.
While sales promotion can be an important part of an organization’s marketing strategy, it is not a core function of HRM. HRM is concerned with the management of people, not with the marketing of products or services.