What happens during this workflow process?

In an organization, the workflow as shown in the screen shot, is to be triggered when an employee is transferred from one department to another.

What happens during this workflow process? There are 2 correct answers to this question.
A . Anyone in the Recruiting team can send back the workflow to the employee’s future manager for some ‘―’ changes in the data
B . The employee’s current manage can send back the workflow to the employee’s future manager for some ‘―’ changes in the data
C . The employee’s future manager will get a notification immediately after this workflow is triggered
D . The Head of the Business Unit of the employee’s new department will get a notification immediately after 1―’ this workflow is triggered

Answer: C,D