This question assesses understanding of reading comprehension strategies, focusing on identifying authorial perspectives and nuanced arguments. **Core Concepts:** * **Author's Perspective:** The author's viewpoint, bias, and stance on a subject, often conveyed through tone, word choice, and emphasis. * **Nuance:** Subtle differences in meaning or expression, requiring careful analysis. * **Reading Strategies:** Techniques used to understand texts at various levels of depth. **Solution:** Option C is the best answer because it focuses on the author's tone, word choice, and context, which are key elements in understanding an author's perspective and nuances in arguments. **Option Analysis:** * **A:** Summarizing main points and facts is useful but it doesn't focus on subtle nuances in author's arguments and perspectives which is the key requirement of the question. * **B:** Scanning for keywords can be useful for a quick overview but does not reveal nuances and authorial perspectives. * **C:** **Correct.** This is the most effective approach for identifying subtle differences and understanding author's perspectives, which is the main requirement of the question. * **D:** While counting the frequency of terms may reveal the emphasis on certain topics, it won't uncover the author's stance or nuanced argument. **Key Takeaway:** The key is to move beyond basic comprehension (facts and summary) and delve into understanding the author's perspective and nuances using tone, word choice, and the context of information. Only option C directly addresses this. **Common Mistake:** The question requires the reader to comprehend the author's perspective and nuances which requires more than just surface-level understanding. Options A, B, and D are designed to reflect simple and less thorough approaches to reading, which are not sufficient for analyzing authorial perspective.