Scanner Data Gathered from Various Supermarket Chains Were Merged with Data

Scanner data gathered from various supermarket chains were merged with data from the travel industry (e.g., airlines, hotels, etc) into one data warehouse.Suppose the goal of
Data mining using this data warehouse is to predict whether a customer's expenditures on
International specialty food items would increase, decrease or stay the same in the next
Year.What technique might be most appropriate for achieving this goal?

A) Neural network.
B) Unsupervised problem.
C) Tree model.
D) Nodal network.
E) None of the above.