None of the above. These are all field guns. The BPS can be had in a trap version, but as has been mentioned they are more complicated to load.
What to look for in a trap gun.
R&R Rancher
A high comb, usually a Monte Carlo, to raise your point of impact above your line of sight. It allows you to "float" the bird instead of "covering" it. Always being able to see the bird will lead to better scores.
A heavier gun. The weight helps soak up recoil. Over the course of a hundred rounds this is important. The weight also provides momentum which helps in the follow through.
Reliability. A trap gun will shoot more in a month that some field guns see in a decade. You don't want to be sending the gun to a smith every few months
OP. broaden your search. And possibly save up a few more bucks if you can. It will increase your choices
My two cents