The loyalty of customers to a company or brand is called B. GOODWILL.
Goodwill is an intangible asset. When you have customer loyalty, this will reflect on the overall performance of the company because all throughout the changes a company undergo, customers are always there.
Goodwill of customers will bring more potential clients to the company making them earn more without spending much money on advertisements. When you satisfy the needs and wants of your clients, they tend to share their good experiences with others. Thus, encouraging other to experience your goods or services first-hand.