For Many Years,the Same First-Line Manager Supervised the Preparation of Campbell

For many years,the same first-line manager supervised the preparation of Campbell soups.He knew,for instance,that the thermometer on one vat consistently read 2 degrees higher than it actually was.He also knew by smell and consistency when to add additional ingredients and when a soup was ready for canning.A year before his retirement,Campbell hired knowledge workers to follow him around and collect his information in the form of if-then statements.With the information gathered,the knowledge workers were able to create

A) transaction-processing systems.
B) management information systems.
C) expert systems.
D) decision support systems.
E) integrated systems.