To Determine the Effectiveness of a Database,the U

To determine the effectiveness of a database,the U.S.Postal Service recommends an RFM scoring method.The letters RFM stand for:

A) recency,frequency and monetary transactions between the company and the customer.
B) rate of sales,fixed use fee paid,and markets reached.
C) relationship between the company and the customer,frequency of the sale,and monetary transactions between the company and the customer.
D) reach,frequency,and markets reached.
E) ratio of inquiries to sales,frequency of sales,and market share.