From the perspective of an employee, the effective channeling of work-related information and concerns

Ais best conveyed through one's immediate supervisor.
Boften requires letters or phone calls to top management.
Cshould be passed on informally to fellow employees.
Dshould be conveyed directly to the manager in charge of function involved

Verified Answer :

I would say A. is best conveyed through one's immediate supervisor. When one would start working in a company, he is under a supervisor that would be the one to convey the messages from the managers. This is done so that the chain of command will not be broken. Since the employee is already given clear instructions is to who he is supposed to answer to, then work related information should be exchanged by the employee and his immediate supervisor so that there is no confusion.