The student has formulated an appropriate and specific question for the historical investigation that has a clearly defined scope. They have chosen relevant sources for the topic and explained their relevance to the investigation. While the student did not explicitly state whether one of the sources was primary or secondary, they correctly identified the form of the selected sources. The student has provided a precise analysis and evaluation of the values and limitations of the origin, purpose, and content of the selected sources, which aids in exploring the topic of the historical investigation.