The student has clearly stated a specific question for the historical investigation, focusing on NATO's intervention in the Libyan Civil War of 2011. The chosen question has a well-defined scope and is supported by appropriate and relevant sources, including articles from reputable journals. However, the student needs to improve the explanation of the relevance of the chosen sources to the research question. Additionally, the student effectively explained the nature of the chosen sources and provided a precise analysis and evaluation of their values and limitations in terms of origin, purpose, and content. Overall, the student has demonstrated a strong understanding of the selection and evaluation of sources for the historical investigation.