Varun's response was inadequate as he simply stated, "Sorry, I don't know," which indicates a lack of relevant experience or knowledge regarding the task of overhauling an underperforming e-commerce website. This response does not demonstrate any attempt to engage with the question or provide insight into his problem-solving abilities. A more constructive approach would have involved discussing any related experiences or expressing a willingness to learn about such processes. For improvement, Varun could have said, "I haven't directly managed a website overhaul, but I understand the importance of performance and scalability. I would approach it by conducting a thorough analysis of the website's metrics and user feedback to identify key issues."