No scratches and excellent condition. Barely noticeable scratches under the light. Some noticeable scratches or deep scratches. Grade C multiple noticeable or deep scratches.You would get a screen similar condition (grade) to the one in picture (Photo shows only an example). It's all about the touch module.
Transplant the chip onto the replacement screen and the problem is fixed. If you don't do that you will get this message even if the screen is original.