Need advise 4 pork tenderloins

Uhhh...what's the difference? I'm doing the one that's long and about 3" diameter...Thanks for the reply....
The pork tenderloin...what if I sear the outside and wrap it in foil to hold in the juice and slow back it in the electric oven...
I'm trying to find a way not to cook it indoors. I can always grill, but I wanted to see if I could do it somehow in the electric smoker.
Thank again for your help.