Button is a donk 46/5
He stacked off earlier after 3 betting middle pair when I had tp.
What river line should I take as this is a horrible card for me. I'm thinking c/f against anybody else but does it change anything since he could obviously have a wide range here?

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($38.65)
BB ($50.75)
UTG ($102.65)
MP ($47.50)
Hero ($109.40)
Button ($58.35)

Preflop: Hero is CO with K, A.
2 folds, Hero raises to $2, Button calls $2, 2 folds.

Flop: ($4.75) 9, T, A (2 players)
Hero bets $3.5, Button calls $3.50.

Turn: ($11.75) 4 (2 players)
Hero bets $9, Button calls $9.

River: ($29.75) J (2 players)
Hero bets $20, Button raises to $43.85, Hero?