Do you have to list a D grade even if you retook it and got a better grade?

So freshman year of high school I got a D in a math class… but I retook the class sophomore year and got a B. On my CSU apps I only listed that math course once and I used the B grade. But after I sent my applications in I began to wonder if that was incorrect?

I think you did it correctly according to this: “If you have repeated a course by taking the exact course at a later time, list the highest grade(s) you earned in this course. ‘Exact course’ is defined as the exact same course with the exact same course title taken at the same school. Do NOT enter this repeated course – as defined here – twice.”

http://www.calstate.edu/sas/onestopkiosk/documents/freshmaninstructions.pdf

You did it correctly for the CSU application. Good Luck.