Answer:
The answer is a)
Step-by-step explanation:
When a firm has a complaint case, in all scenarios, the firm should retain the original complaint along with its resolution in the agent's file and send the customer a photocopy of the complaint for traceability in both sides (the 2 companies) but also, send the customer a written apology letter to follow the complaints number and type and retain a copy in the agent's file in case of a posterior reclamation of the same complaint.