Which of the following is a resource commonly used for exploration?

The correct choice is databases because they serve as a robust source of information for exploration in research. Databases contain organized collections of data that researchers can query and analyze to uncover patterns, trends, and insights that inform their decision-making processes. They provide access to a wide range of information across many fields, which is invaluable for exploratory research.

Experimental data, while important, is typically more structured and serves specific hypotheses rather than enabling broader exploration. Statistical software is crucial for analyzing data but does not itself provide the exploratory information that databases do. Personal interviews can offer qualitative insights but are limited in scope compared to the extensive quantitative data that databases can provide. Thus, databases are the most comprehensive resource for exploration in research contexts.