The student clearly stated an appropriate and specific question for the historical investigation, articulating the focus on Nazi Germany's economic policies from 1933 to 1939. The investigation has a well-defined scope, as the student identified relevant historical figures and events within the specified timeframe. Additionally, the student chose appropriate and relevant sources, explaining their contributions to understanding the topic effectively. However, the student did not explain the nature or form of the chosen sources, nor did they analyze the values and limitations related to the sources' origins and purposes. Despite these shortcomings, the student provided a thorough evaluation of the content of the sources, highlighting their strengths and limitations.