Just respond with "Yes, sir" and see me after class.
Ugh... Yes sir.
Response to Correction - Students will respond to correction with appropriate acknowledgement and action. Argument and excuses are not appropriate in the moment that a correction is made, but a calm and professional meeting with the instructor at the end of the time is welcome and encouraged. It is good to practice to take a deep breath, say "Yes, sir" and move on to the task at hand.