Simple AK flop question

[DireWolf]

PokerStars No-Limit Hold'em Tourney, Big Blind is t150 (8 handed) converter

BB (t3290)
UTG (t4020)
UTG+1 (t2037)
MP1 (t7418)
MP2 (t7370)
Hero (t6110)
Button (t1842)
SB (t1045)

Preflop: Hero is CO with K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises to t400</font>, <font color="#666666">2 folds</font>, BB calls t250.

Flop: (t875) Q[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero ???

Sorry this may be boring, trying to check up on hands