Varun's response, "I don't remember," indicates a complete lack of relevant experience or knowledge regarding leading efforts to address inefficiencies in e-commerce supply chains. This response does not engage with the question and fails to demonstrate any understanding of operational efficiency and cost optimization strategies, which are crucial for the role. A more constructive approach would have involved discussing any related experiences or expressing a willingness to learn about supply chain management. For improvement, Varun could have said, "While I may not recall specific projects, I understand the importance of addressing supply chain inefficiencies and would approach it by analyzing processes and implementing technology to enhance efficiency."