In the Context of Employee Orientation, What Should a Supervisor

In the context of employee orientation, what should a supervisor do during follow-up?

A) Regularly check on the performance and progress of employees
B) Show the employee the locations of facilities he or she will need to know about
C) Encourage co-workers to invite a new employee to join them on breaks and at lunch
D) Introduce the new employee to the people with whom he or she will be working