I’m taking organic chemistry now and for sure I know I will get a grade less than a C so I want to drop it. I’m already admitted to UC Davis,I’m afraid they will cancel my admission. I check on the UCD website and it said OChem is strongly recommended so I’m not sure if it is a major prerep. .
You should contact them and ask them about it to make sure. You’ll get a precise answer that way.
I doubt that they will care about one class, but I agree that you should call admissions and ask them. As always be polite and calm.