The correct answer is A. Wireframe Prototype, as explicitly keyed in the uploaded study guide.
The question states that Cloud Kicks already has requirements and user scenarios and now wants to evaluate how users respond to the content and structure of a proposed feature. A wireframe prototype gives participants something concrete enough to review or interact with while keeping attention on organization and functionality rather than polished aesthetics.
Option B, a User Flow, communicates how a user may move through steps or screens. It is useful for documenting process logic, but it does not provide the same screen-level representation of content and structure that can be shown directly to users for evaluation.
Option C, Heuristic Review results, represent an expert-evaluation output. They do not constitute a proposed feature artifact that users can inspect and react to.
The study-guide answer therefore reflects the importance of selecting the right prototype fidelity for the research question. If the team wants feedback about information placement, structure, sequence, and overall concept before investing in detailed visual design, a wireframe prototype is appropriate.
It enables early validation while changes remain comparatively inexpensive.
Study Guide reference/topics: Wireframe Prototype, early testing, content structure, user feedback, Testing.
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