Because the Latter Steps in the Data Mining Process Are

Because the latter steps in the data mining process are built on the outcome of the former ones,one should:

A) start with an understanding of the relevant data.
B) work quickly through the early steps and work in-depth on the latter steps.
C) start by cleaning the relevant data and storing it in a single data warehouse.
D) pay extra attention to the earlier steps in order not to put the whole study on an incorrect path from the onset.