When an Employer Is Asked for a Reference for a Former

When an employer is asked for a reference for a former employee, the employer

A) has a duty to respond
B) has no duty to respond, but if he/she responds, the reference must be truthful and honest
C) can only respond if the former employee has signed a waiver authorizing release of confidential information
D) should carefully develop a response that will not subject the employer to liability for defamation, even if that means leaving out relevant information about the former employee