The student did not clearly state an appropriate and specific question for the historical investigation, which requires refinement for better focus and clarity. The research question lacks a defined scope in terms of dates and significant events, needing specific years to clarify the investigation's parameters. Although the student chose appropriate and relevant sources, they failed to explicitly explain the relevance of each source to the investigation, nor did they clarify whether the sources are primary or secondary, which would enhance the analysis. However, the student did successfully identify the form of the sources and provided a precise analysis of their values and limitations, demonstrating a solid understanding of their content and purpose.