The student included four supporting documents, which meet the requirement of having three to five documents. All documents are contemporary, published within a maximum of three years prior to submission, and relevant, providing in-depth insights into Boeing's corporate culture and crisis management. However, the student failed to clearly label the documents as "Supporting Document 1," "Supporting Document 2," etc., and did not highlight relevant sections within them. Additionally, the student did not assess the validity and reliability of the supporting documents, which is necessary for a thorough analysis.