To Improve the Effectiveness of the Marketing Control Process, the Marketing

To improve the effectiveness of the marketing control process, the marketing manager should:

A) realize that most errors are made because managers react to detailed information too quickly-instead of waiting to see what patterns show up in summary reports.
B) be the supervisor for the data-processing manager.
C) have all necessary data captured as it comes in and in a form that can be quickly sorted and analyzed by computer.
D) be certain that all cost records are kept in a central location controlled by the marketing department.
E) All of these are true.