The Marketing Manager of Zenith Corp

The marketing manager of Zenith Corp. is interested in ranking clients on the basis of their profitability, and accesses a database that tells him about the frequency and size of each client's order along with the actual costs per order. This database is part of the ________ system.

A) sales information
B) customer relationship management (CRM)
C) financial information
D) employee management
E) promotion management