A . Regression

Regression is used to predict a continuous value and is not suitable for grouping people based on

similar tastes.

B . Association

Association is used to find relationships between variables in large datasets, often in the form of

rules (e.g., market basket analysis). It does not directly group individuals but identifies patterns of co-

occurrence.

C . Clustering

Clustering is an unsupervised learning method used to group similar data points based on their

features. It is ideal for identifying groups of people with similar tastes without prior knowledge of the

group labels. This technique will help the company segment its customer base effectively.

D . Classification

Classification is a supervised learning method used to categorize data points into predefined classes.

It requires labeled data for training, which is not the case here as we want to identify groups without

predefined labels.

Therefore, the correct answer is C because clustering is the most suitable method for grouping

people with similar tastes for targeted product marketing​​.