UC Personal Insight Topic Question

So I had a professor who basically gave any student who got an A in his class a research internship. Since I took advantage of this, is it better to write about this for topic #4 (the educational opportunity one) or for the required essay (prepared for major).

Could I also maybe describe the internship briefly in the required essay along with the other things I have done and then describe the process of getting the internship in the topic #4 essay? My main concern is maybe having too much overlap.