UCR’s business program is solid, but if you go to CC, work very hard, etc., you may be able to transfer to Berkeley’s Haas School of Business or UCLA (Business Economics). Both are good options. You can also TAG to UCR’s Business program (provided you have a 3.5 and all major prep completed) - http://admissions.ucr.edu/WhyUCR/ourGuarantee#transferStudents
As @Burdened stated, TAG is a guarantee if you meet the criteria (which isn’t too difficult to do). You use TAG for one school (not the top 3 UC’s, or selective majors, like UCI’s Business Admin). Essentially, if you went to CC, you would probably TAG to UCR Business and have guaranteed admission there, and you would likely apply to other Business programs in the UC system, or even at USC. It is very competitive to transfer into highly ranked business programs, naturally - but if you do well (3.8+, some extracurriculars/jobs, all major prep completed, etc.), you should be in somewhere.
Generally, transfer admission (to the top UC’s) is less difficult than HS admission. They care primarily about your GPA, completion of prerequisites for the major (so you can graduate on time), and completion of general education requirements (although this varies - Haas doesn’t require GE’s to be completed, for example). Still, keeping a high GPA is no easy feat. The pace of college is significantly quicker than that of high school, higher quality work is expected, there’s much more reading, etc.
Personally, I found college to be a huge step up from high school - but I only took one AP class. Many CC classes are rather easy (i.e. most intro courses), but not all are. Also, many people who want to transfer to good schools or good programs go out of their way to take more challenging classes. Generally, the grading of CC classes is more lenient than their UC counterparts, but much of the same material is covered. There’s much more reading in UC classes, but if you do well in CC, you should do well after transferring.
Time management is extremely important for doing well in CC (and college in general).
Next time, post here: http://talk.collegeconfidential.com/uc-transfers/