Recommendations?

I was wondering how the recommendation process for teachers worked. Most of the colleges im applying to require 2 teacher recs. If i invite 3 teachers for recs, is it possible for me to choose amongst a “bank” and choose 2 teacher recs i want for college A, and choose a different teacher and keep one same rec for college B? or is it in order of which they submit/i added them, or is it completely random?

Following this…