What Is Customer Relationship Management (CRM)

What is customer relationship management (CRM) ?

A) the management of information between and among activities in a supply chain to maximize total supply chain effectiveness and corporate profitability
B) the integration of all departments and functions throughout an organization into a single IT system (or integrated set of IT systems) so employees can make decisions by viewing enterprisewide information about all business operations
C) a means of managing all aspects of a customer's relationship with an organization to increase customer loyalty and retention and an organization's profitability
D) information that connects the plans, methods, and tools aimed at integrating separate enterprise system