OESD on a mono flop

[bottomset]

villian is unknown, seems to be tightish

PokerStars No-Limit Hold'em, $1.00 BB (8 handed) internettexasholdem.com

MP2 ($114.70)
Hero ($99.90)
Button ($178.95)
SB ($48.45)
BB ($298.05)
UTG ($31.50)
UTG+1 ($93)
MP1 ($103.15)

Preflop: Hero is CO with 8[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/spade.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises to $4</font>, <font color="#CC3333">Button raises to $9</font>, <font color="#666666">2 folds</font>, Hero calls $5.

Flop: ($19.50) 9[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

Hero bets?
Hero check/calls?
Hero c/r bluffs?
Hero just gives up?