Originally Posted by WVHillbilly
Bet $1, generally fold if raised.
This would be highly dependent on a read on villain, in my book. He may be a fish raising with a random ace, he may be an aggro-donk raising a really scary card, or he may know what he's doing.
The problem with option (c) of knowing what he's doing is that he also has to go for the very unlikely checkraise with his FH or overflush (given how the rest of the hand played).
By default, this is a straight up bet/call for me at $5 nl.