Answer: Building customer loyalty depends on a committed workforce
Step-by-step explanation: The duties of human resource department includes employing suitable individuals for different jobs and maintaining a positive culture within the work place, so that the employees feel comfortable. Also the training of employees and resolution of any conflict is also done by the HR department.
But customer loyalty is done by the marketing department of any organisation as they are responsible for building positive relationships with the existing and potential customers.
Hence, from the above we can conclude that the correct option is D.