Tell us about your overall academic performance so far. Where have you excelled, and where could you improve?

"As far as areas of improvement, I think I can better myself in terms of time management. I overextended myself last semester with volunteer opportunities, and my study time suffered slightly. Now that I have identified the reason behind my time management challenges, I will only see improvement moving forward. I am very proud of my achievements during my undergrad education. Those courses added so much value that I will bring to my graduate program. My best courses included X, Y, and Z. I feel that I excelled in these because they are related to the area of medicine I plan to end up in as a physician assistant."

While you want to answer both parts of the question, you want to focus more on where you excelled rather than where you could improve. If you start by saying where you could improve, you will end on a positive note with where you excelled.