The student includes three supporting documents that analyze Coca-Cola's marketing strategies and competitive position against PepsiCo, meeting the requirement of including three to five supporting documents. These documents are contemporary, published within the last three years, and provide relevant insights into Coca-Cola's competitive strategies. Additionally, the student has assessed the validity and reliability of the supporting documents, referencing credible sources such as financial reports and market research platforms. However, the student did not attach the supporting documents, which makes several other subcriteria not relevant.