Flopped Straight in SB

[Lethe]

Villain plays a TAG style and is decent, although he does coldcall a bit too often and sometimes does silly things like play K4s in MP. We've played together before and he sees me as a solid TAG.

SB is 2/3, hence the preflop call.

2 limpers, I call 86o in SB, BB checks.

Flop: T97r

I bet, Villain calls, other limpers fold.

Turn: K

I bet, villain raises, I 3bet, villain caps.

Hero: a) folds, or b) calls, and c/c the river ?