Kelley standard admission

I have been admitted into IUB and will be trying to get into Kelley my sophomore year through standard admission. I have read many forms that in some of the required classes under 50% of students get a B or higher. In order to minimize my risks of getting below a B I am willing to take classes during the summer at IUPUI to transfer over. What are all the prerequisite classes that I should take that will transfer over?

What options will one have if they are not able to get into Kelly via Standard admission after the first year?

I suppose they will be able to apply for admission into other majors offered by the other schools, with probably having to take some additional subjects to suit the new major?