KQs. Flop=yay. Turn= nay

[SNOWBALL]

I played with the SB shorthanded in the must-move, where he was pretty damned loosepassive. He didn't bluff, or valuebet anything except strong hands. He was really loose PF, but only raised big hands.
I just broke this other guy in the must move HU, so now I am in the full game.

Hollywood park 15/30

I raise KdQd UTG. 4 callers.

Flop QsTs5c (5bb)

sb checks. aggro BB donks. I raise. Loose passive sb calls. BB calls. I tell myself that if sb donks a spade I am releasing.

Turn is an offsuit 8. SB donks, bb folds. Getting 5:1 effective on a calldown, and 9:1 immmediate odds, I...?

A. Call and fold river unless I make 2 pair
B. Call turn and call river
C. other...