Answer:
Marketing, sales and customer service
Step-by-step explanation:
Customer relationship management (CRM) is a business strategy implemented across the entire company that is aimed at improving the company's income, profit, lower cost and increase customer loyalty based on the principle of putting the customer first in management decisions. CRM combines actions, methodologies, and technologies that establishments utilize for managing and analyzing customer correspondence and information within a customer's period of doing business with the establishment so as to improve customer retention, service, and relationship as well as to improve sales.