Before deciding on a new promotional campaign, Jeffrey's Muffins looked at its customers' buying patterns over a 15-year period as determined by their use of a loyalty card. What method did Jeffrey's use to make sense of the data that were available?
A. neuromarketing
B. panel data
C. biometrics
D. data mining
E. data warehousing

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.

answercontrol is returned to method c;