bottom set, 3straight board

[lifes3ps]

again im just trying to find texbook here. my instinct says bet fold to a cr, correct?

Poker Stars
Pot Limit Omaha Ring game
Blinds: $0.25/$0.50
6 players
Converter

Pre-flop: (6 players) Hero is UTG+1 with :ad :jd :9d :9c
[color=#cc0000]UTG raises to $1.75</font>, Hero calls, 3 folds, BB calls.

Flop: :js :qs :9h ($5.5, 3 players)
BB checks, UTG checks. hero?

do i fold to any raise? including a minraise?