Answer:
D, data mining
Explanation:
Data mining can be defined as the process of gathering data by finding a pattern or anomaly within a large range of data.
Simply put, data mining is the process of obtaining data from a large amount of data through a certain pattern or anomaly.
In the above question, Jeffrey uses the loyalty card use by customers over a 15year period as basis for deciding on whether or not to make a new promotional campaign. The loyalty card use frequency is the pattern that Jeffrey will be using.
Data mining is a useful as information gotten from it can be used for different purposes such as reducing risks, increasing revenue, etc.
Cheers.
