If it were me, I would encourage her to transfer to one of the unis with her major in the spring. That way, if she doesn't like that university, she can still transfer to another one with her major in the fall. It gives her a chance to test it out without losing more time by going to a CC in the spring, then a university in the fall and THEN finding out she wants to transfer yet again.
That being said, if she does decide to transfer to a CC, she needs to be sure to check with the three schools with her major to verify they will accept the classes she takes at the CC. And, of course, to take classes that will transfer equally well to all three, in order to keep her options open!
I wish her the best of luck... it really will be okay!