Explanation:

- Recruitment (Option 3):

- This is the correct answer and refers to the process of identifying, attracting, and encouraging potential employees to apply for job vacancies within an organization.

- Selection (Option 1):

- Involves choosing the most suitable candidates from those who applied, following the recruitment process.

- Training (Option 2):

- The process of enhancing existing employee skills or imparting new skills to improve job performance.

- Orientation (Option 4):

- Introducing new employees to the organization’s culture, processes, and expectations, helping them acclimate.