UTG bets 8bb, MP and CO fold

Multi-way Flop | 5-way: BTN | 100bb effective | Difficulty: Beginner

Players in hand: UTG, MP, CO, Hero (BTN), BB

Hero hand

3♣3♦

Board

K♥Q♠9♦

Action so far:
5-way pot 12.5bb on K♥Q♠9♦
UTG bets 8bb, MP and CO fold

Pot: 12.5bb   To call: 8bb

Villain range: UTG: KQ,KK,QQ,99,KJ+ in this multi-way line

Your move: