The student includes three to five supporting documents, which are contemporary and published within a maximum of three years prior to the submission of the IA. Each document is labelled clearly in a table. The supporting documents are relevant and sufficiently in-depth, exploring not only Microsoft but also its finances and potential investment, as well as topics related to new technology like ChatGPT. The student has highlighted the text most relevant to the investigation and provided a range of ideas and views regarding the topic. Additionally, the student has assessed the validity and reliability of the supporting documents, acknowledging both their usefulness and potential biases.