Lab 1a

I have done all my fields but when I grade it, it is not being seen. When I go to look at the fields they all the ones not seen automatically have a "_c" following them, I did not put there. Not sure if that is getting in the way of the grader seeing them. When I go to edit them in they are spelled out normally in editing screen but when I press save, they have the "_c" in the Field and relationship screen. Not sure what to do.