Say this year the university A advertises one postdoc and one tenure-track position. If I prefer the tenure track position, but am not sure that I can get it, what should I choose between the following two options?
Option A: Apply for both postdoc and tenure-track positions.
Option B: Apply for tenure-track position only, hoping that even if I don't get it, the university will consider offering me the postdoc position.
I thought that Option A is safer, but some of my friends say the opposite. They think that if you apply for both positions, then even if you are good for the tenure-track position, the university will tend to offer you only the postdoc position, the lowest rank that you asked for.
Do you have any insight on this?
For more information: the job market I am referring to is the US'.
What if we have other situations: postdoc/lecturer, lecturer/tenure-track, or postdoc/lecturer/tenure-track?