Varun's response is missing, which indicates a lack of engagement or professionalism at the conclusion of the interview. The absence of a closing statement can leave a negative impression on the interviewer. In contrast, the benchmark response expresses gratitude, reflects positively on the conversation, and conveys anticipation for future communication, which helps to leave a good final impression. For improvement, Varun should ensure to always thank the interviewer for their time, express appreciation for the opportunity, and convey enthusiasm about the next steps. This would demonstrate professionalism and a positive attitude.