The main purpose of employee orientation is to:

Employee orientation, also known as onboarding, is a critical initial process for integrating new hires into an organization. Its primary goal is to ensure new employees feel welcome, understand their role, and quickly become productive members of the team.

• Introduce new hires to the organization and its culture is the correct answer. This involves familiarizing them with the company's mission, values, policies, procedures, and social norms, helping them adapt and understand their contribution.
• Assess performance (A) is part of ongoing performance management, which occurs after the orientation phase.
• Terminate poor performers (C) is a disciplinary or performance management action, completely unrelated to the welcoming and integration purpose of orientation.
• Negotiate salaries (D) typically happens during the recruitment and hiring phase, prior to the employee's official orientation.