Make sure that she at least attempts to apply for the 4-year before settling on CC (if she would rather go there), because I was in the same situation, enrolled in a CC with open door policy, and later found out that my scores on the GED/ACT alone were enough to get me into the university.
On the other hand, I'm under the impression that CC is a great way to transition from high school to a full-on university, with smaller class sizes and generally a better ratio of counselors/advisors:students.