I was thinking about what an academic Admissions tutor in a department would see, or someone like me doing interviews of applicants (we still interview). I was Admissions Tutor about 15 years ago, and we only saw the course codes pertaining to our own programmes.
So if a pupil applied for say, Basketweaving (Single Hons) and Basketweaving & Woodcarving (Joint/Combined Hons) we would see both those codes, as we were the admitting Department in the Joint degree.
But if the two programmes are in different Departments (or Schools) then only the relevant code will be seen.
And none of us ever see the names of all 5 of the programmes applied for (although in my discipline, I can pretty much guess who else they're applying to if they're applying to my department!) . But I don't see anything but the code for the programmes in my Department.
Look, @FrostAtMinuit and other parents, it's not something to be overly concerned about. We are bound by our professionalism & ethics - we want the best students and the best fit for our programmes.
Although as PPs have noted, if one programme is generally over-subscribed, an offer may be made for the less full programme. However, that is generally post A-Level results day, when the applicant hasn't made the offer. They may get an offer for a related but undersubscribed programme.
You can't second guess very much, really. Your DC should make the best possible application for the degrees they really want to do.