What is Better for a career, Graphical Design or Computer Aided Design?

I'm going to be a sopre in high school and have an opportunity to take either of the two cles, I'm currently not so good in math so if it is difficult I would rather stay away, CAD is offering 3 credits instead of the usual 1 for my 3rd year that I take it, whichever I decide I will be taking for the next three years and possibly in college.