Answer: D. all of the above
Step-by-step explanation:
Customers want to be provided with good service when they shop so it is important that employees are able to do so and they can only do so if they have the tools required. The company should therefore make those tools available thereby empowering employees to provide great service.
Making follow-up calls to customers after they receive a service to check if the service is working out will build customer relations because they will feel that the company cares. Finally, asking customers of their opinions on improvements needed makes them feel they have a voice and will go a long way in establishing rapport with them.