The student effectively incorporates relevant and appropriate source material in their essay, focusing on both qualitative and quantitative elements of the research question. The sources, such as Toyota's financial reports, allow the student to answer the proposed question. Additionally, the student maintains an academic and analytical tone and style throughout the essay, without being informal. The use of technical or subject-specific terms is balanced and not oversaturated, contributing to the clarity of the work. However, the student should provide clearer explanations for technical terms, such as the defusing strategy, to demonstrate their knowledge and understanding of the topic more effectively.