Metrics are defined as the income earned by the customer minus the expense of servicing the client.
The correct option is A.
Client income, on the other hand, is the most common and vital source of revenue. Any modern business depends on its consumers to survive. They may push your organization to new heights if you realize how to optimize its involvement. Customers invest in your services and products at various times along the customer journey.
Most of the business success is attributable to the total revenue they produce over their whole client journey. These revenues may take the shape of any revenue, including annual recurring revenue, Customer Lifetime Value, and reportable annual GAAP revenue.
Learn more about total revenue visit:
https://brainly.com/question/13000391
#SPJ4