($27) Flop OESD facing bigstack

[nogenius]

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB (t5180)
Hero (t1890)
UTG (t3230)
Button (t3200)

Preflop: Hero is BB with 4, 3.
2 folds, SB completes, Hero checks.

Flop: (t375) 5, K, 2 (2 players)
SB bets t200, Hero ???

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SB was a loose bigstack who had bet most flops.

What's your move here?

[TLR]

Folds
I would wait for a better spot