Which of the Following Is True of a Good Marketing

Which of the following is true of a good marketing information system?

A) It typically uses only external sources of data in marketing research.
B) It develops a way of offering information about future plans of action that might not be very feasible or cost-effective.
C) It eliminates the time-consuming task of assessing the information needs of a firm.
D) It focuses solely on maximizing the amount of data generated irrespective of relevance.
E) It helps decision makers use the information to generate customer and market insights.