HCA Corporation Collects Data Regularly from Multiple Sources

Multiple Choice

HCA Corporation collects data regularly from multiple sources.It asks physicians to maintain a diary,it asks patients to complete a questionnaire,and conducts telephone interviews with ex-patients.The marketing department of HCA crunches this data and presents the information to the CEO to make marketing decisions.The information is all part of HCA's

A) marketing information system.
B) knowledge management.
C) expert systems.
D) data mining.
E) model system.