Which of the following actions involves analyzing information?

The action of comparing different themes involves analyzing information because it requires the examination of various elements within texts to understand their similarities and differences. This process demands critical thinking and evaluation of the themes' implications, contexts, and relevance within the texts being compared. By engaging in this comparison, one scrutinizes how different themes interact or diverge, leading to a deeper understanding of the material.

In contrast, justifying personal opinions is more about expressing and supporting one’s individual perspective rather than analyzing outside information. Building new concepts involves synthesizing information rather than analyzing existing data, and identifying main ideas focuses on extracting core messages without the deeper analytical comparison of themes. Each of these actions plays a role in understanding literature, but comparing themes distinctly emphasizes the analytical component.