Answer:
C. Cluster analysis
Explanation:
Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in the same group are more similar to each other than to those in other groups.
This statistical method is used to group similar objects into respective categories by identifying trends and patterns.
Cluster analysis is typically used in the exploratory phase of research when the researcher does not have any per-conceived hypotheses. It is commonly not the only statistical method used, but rather is done in the early stages of a project to help guide the rest of the analysis.
