Recognize Classification and Regression Problems in Data Mining

Multiple Choice

Recognize classification and regression problems in data mining.
-Data gathered from home improvement retailers (e.g. Lowe's, Home Depot, etc.) and
Publishing companies (magazines, books, etc.) were merged into one data warehouse.
Suppose data mining is used to determine how much a customer spends annually on
Energy efficient products. In data mining this is referred to as what type of problem?

A) Regression.
B) Transactional.
C) Unsupervised.
D) Classification.
E) None of the above.