I did an unofficial post-bacc program and the first quarter I took 3 classes while working full-time. Dumb. As a result, I earned a C in Gen Chem 1. I earned a B and A in Gen Chem II and III. All A's in my Bio's and A, B, C in Physics. I absolutely know I can get an A in Gen Chem I. I didn't struggle at all in Gen Chem II or III. Should I retake that Gen Chem 1 course or will it look horrible since I only took it 2 years ago as a post-bacc? Do I just hope I can explain it in interviews? Thanks.