When Choosing Between an Internal Human Resources Employee and Either

When choosing between an internal human resources employee and either an informal leader or outside consultant to be an ethics training facilitator, what factor is most likely to influence an organization to choose one of the later?

A) too many competing roles assigned to the human resources employee
B) unwillingness of employees to speak honestly with a human resources employee
C) greater capacity for impartial judgment on part of the informal leader or outside consultant
D) lack of training time available for human resources employee