What is the key feature of a problem-solution text structure?

The key feature of a problem-solution text structure is the presentation of a problem and its solution. This structure is specifically designed to identify an issue that needs addressing and then outline possible solutions to that problem. The text typically begins with a clear definition of the problem, described in detail to illustrate its significance or urgency. Following this, the text explores one or more potential solutions, often evaluating their effectiveness or feasibility. This format is effective in fostering critical thinking and encouraging readers to consider various approaches to resolving issues.

The other options do not align with the central focus of a problem-solution structure. For instance, a listing of facts lacks the narrative dynamic needed to frame a specific problem and its resolution. Similarly, a story's climax relates to narrative structure and dramatic tension, while a comparison of two items emphasizes contrast rather than addressing an issue and offering solutions. Thus, the choice that captures the essence of problem-solution text structure is the presentation of a problem followed by its solution.