A simple little question

[blankoblanco]

Seat 1: bnm72 (1,125)
Seat 3: FrushDraw (715)
Seat 4: FinnishFlash (1,360)
Seat 5: combuboom (1,275)
Seat 6: rjmgrace (2,940)
Seat 8: JessAlba (4,955)
Seat 9: Dman112 (1,130)
JessAlba posts the small blind of 25
Dman112 posts the big blind of 50
The button is in seat #6
*** HOLE CARDS ***
Dealt to combuboom [Qs Qc]
bnm72 folds
FrushDraw folds
FinnishFlash folds
combuboom raises to 150
rjmgrace folds
JessAlba folds
Dman112 calls 100
*** FLOP *** [3h Ks 5d]
Dman112 checks
combuboom...

Without any real reads... bet here? You're likely either way behind (any K) or way ahead (most every other holding), so should you check behind? Why? $20 buy-in if it matters. Ty