A "D" in Spring Semester Before Transfer

I have been applied to USC for Economics and I have a high GPA. My only problem is I might end up with a “D” in my Calc 2 class. It is NOT required for my major at USC, but I am taking it because I have applied to UC’s and they require it. If I get do get a “D” will it hurt my chances of getting in or can I just keep it on my record because I do not believe it will hurt my GPA that bad. I will have higher than a 3.0 GPA for the Spring semester because I will definitely get an A in my other Spring classes. Thank you.