The student includes relevant diagrams that illustrate the market for low-ash metallurgical coke in India, effectively showing the supply and demand curves and the impact of the import quota on prices and quantities. Each diagram is accurately labeled, reflecting a clear understanding of economic concepts, including the relationship between world price and domestic price, as well as the quantities demanded and supplied. Additionally, the student provides detailed explanations alongside each diagram, clarifying their content and relevance, particularly in relation to consumer and producer surplus. Overall, the student's work demonstrates a thorough grasp of the economic implications associated with the chosen topic.