What are some popular application areas of text mining?Choose all that apply.

A. Clustering. Grouping similar documents without having a predefined set of categories.

B. Association. Finds interesting relationships (affinities) between variables (items or events)

C. Concept linking. Connects related documents by identifying their shared concepts and, by doing so, helps users find information that they perhaps would not have found using traditional search methods.

D. Question answering. Finding the best answer to a given question through knowledge-driven pattern matching.

E. A and B

F. A, C and D