NL$200 against a nit. C/bet was called. Turned MPTK. Best line?

[StarRain]

I was thinking that he could have floated me because of my image on the flop. Therefore I C/C his small bet on the turn and somehow hope he would check down on the river or maybe I could improve. However, after I saw his stats I was like "No this guy wouldn't make a play against me on a K high flop without at least a pair of kings". I ain't sure if this is correct, but I agree that once I c/c the turn I should have c/c river too...