You can do 6 breadths (subjects not in your discipline), or 4 breadths and 2 selective a (subjects still within your discipline but not necessarily towards your intended major).
It sounds as if levilamp is implying that we need not do 6 subjects but can just do 4. Im familiar with the concept of 6 breadths or 4 breadths & 2 selectives but i seem to be misunderstanding what he means.
In second year i have my core (which is 2 subjects in 1 in biomed), an elective and a breadth per sem.
On top of this i have done a summer breath and am planning on a winter breadth which would take my breath total to 6.
I know that instead of that, i could say do instead of 1 breath per semester in my second year, i could do a selective each semester.
These are the only 2 options right? Unless i am getting something wrong