Tough river decision

[Thomas Luice]

Villain played aggressively preflop but turned quite passive after flop. He sometimes don't bet continuely if he missed the flop. So I guess that his check on the turn indecated weak hand. And his river action was also passive, rarely bluff. (but NOT never). What is the best river action? cc,bf or anything else?

Prima Poker skin
Limit Holdem Ring game
Limit: $1/$2
5 players
Converter

Pre-flop: (5 players) Hero is BB with 9[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/club.gif[/img]
2 folds, <font color="#cc0000">Button raises</font>, SB folds, Hero calls.

Flop: T[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] (4.5SB, 2 players)
Hero checks, <font color="#cc0000">Button bets</font>, Hero calls.

Turn: 4[img]/images/graemlins/heart.gif[/img] (3.25BB, 2 players)
Hero checks, Button checks.

River: Q[img]/images/graemlins/spade.gif[/img] (3.25BB, 2 players)
<font color="#cc0000">Hero...?</font>