The student has effectively included five supporting documents in the work, meeting the requirement of including three to five supporting documents. Each document has been labeled clearly, ensuring easy reference in the investigation. Additionally, the supporting documents are relevant and provide in-depth information related to the research question, covering a range of ideas and views regarding the topic. However, the student did not highlight the parts of the supporting documents that relate directly to their IA, which is important for the marker to identify the usefulness of each document in answering the research question. Furthermore, an assessment of the validity and reliability of the supporting documents is missing, which could have been included in the methodology to enhance the evaluation of the sources.