The student includes five supporting documents in the IA, which cover various aspects of Duolingo's social media strategy. However, one of the documents is dated March 22, 2022, which is outside the three-year limit, and the relevance and depth of the supporting documents need improvement, as they currently rely on a general interview without sufficient analytical sources. While the student has clearly labeled each document, the analysis lacks a range of perspectives and does not include an assessment of the validity and reliability of the sources. To enhance the IA, the student should incorporate more recent and diverse documents that directly address specific aspects of Duolingo's marketing efforts.
