Pot Limit Omaha Hi/Lo Tournament - t20/t40 Blinds - 9 players

UTG: t5456 136.40 BBs
UTG+1: t4422 110.55 BBs
UTG+2: t4335 108.38 BBs
Hero (MP1): t5412 135.30 BBs
MP2: t9509 237.72 BBs
CO: t4455 111.38 BBs
BTN: t4825 120.62 BBs
SB: t5295 132.38 BBs
BB: t3682 92.05 BBs

Pre Flop: (t60) Hero is MP1 with 8s Ah Kd Ad

3 folds, Hero calls t40, 2 folds, BTN raises to t120, 1 fold, BB calls t80, Hero calls t80

Flop: (t380) 4d Kh 8h (3 players)

BB checks, Hero checks, BTN bets t280, BB raises to t1220, Hero ??

This hand was played by my friend; I'm uploading it on her behalf. She asked me some questions and I couldn't really help her :(

Early on in the tournament. BB seemed fairly loose and aggro, his stats were like 60/50. BTN looked on a solid side.

With the Ah blocker, is this an easy fold 3-way? Or are there other options, too? I block no low cards, and (I thought) it's reasonably likely that I have the best hi hand.. although I can't be too sure, I'm fairly new to this game.

Any inputs are appreciated. :)