Which of the Following Is Not a Category in Which

Which of the following is not a category in which tasks performed by data mining can be grouped?

A) Classification arranges customers into pre-defined segments that allow the size and structure of market groups to be monitored.
B) Clustering customers based on domain knowledge and the database, but does not rely on predetermined group definitions.
C) Deviation detection uncovers data anomalies, such as a sudden increase in purchase by a customer.
D) Forecasting predicts the future value of continuous variables based on patterns and trend within the data.
E) All of the above were mentioned as a category.