This question assesses the understanding of different learning approaches and the issues related to initial performance versus long-term retention. The core concept lies in the difference between superficial and deep learning and their respective impacts on learning outcomes. * **Core Concept:** Learning theories, superficial vs deep learning, knowledge retention, and knowledge transfer. * **Solution Analysis:** The correct answer (A) aligns with the idea that the initial benefit indicates superficial learning. The method is focused on initial success (speed and retention), not long term application or comprehension. The core issue is that it lacks the deeper learning needed for integration and long-term memory. Options (B), (C), and (D) may be contributing factors, but the central issue is not about motivation, memorization, or skills focus but is the depth of learning. * **Option A (Correct):** *Prioritizes surface learning* perfectly describes the situation where the short-term gain does not equate to long-term gain. Surface learning is not deeply integrated, meaning the lack of knowledge integration will result in poor performance later. * **Option B:** The lack of external motivation would probably result in poor results, especially initially. This option does not explain the positive initial results and subsequent downfall of performance. Thus, it is not the main problem. * **Option C:** *Rote memorization* would yield similar results initially, with poor knowledge integration and retention after some time. However, rote memorization tends to do less well initially than deep learning, and therefore, the situation does not directly point towards rote memorization as the core problem. Therefore it is not the correct option. * **Option D:** If the method emphasized conceptual understanding then it is likely that the learning would be better retained than something rote memorized. Therefore, it cannot be the primary issue in this case. **Key Takeaway:** The primary issue is the learning method's focus on surface level memorization rather than deep understanding and application. Recognizing the limitations of superficially effective techniques in yielding long-term benefits is central to understanding learning processes.