I have promised 250 rep bounties to five questions here. Recently I got 2 answers on this question from @DrXorile and @Hackiisan. However, I could not understand one of them, and am unsure of the other. Anyways, I don't want to rely entirely on my own math for such questions.
I put a 50 bounty, hoping that others would up/down vote the answers, so I would get to know which answers are, in fact, correct (and the award the remaining 200). However, this has not happened and there are only 1-2 upvotes on each answer.
What should I do know?
(a) I could just retract on the bounty offer of 250, and award the current 50 to the other previously verified answer. But this seems somewhat unfair.
(b) I could trust that the answers are right and award the bounty. But this has its own risks. Not only does it give my rep to a user for a potentially false answer, it also misdirects future users who will be more likely to believe in the possibly dubious answer and not bother posting or even searching for a true answer with a higher upper bound.
(c) I could ignore the current 50, and put a condition that I will award 250 rep when either answer receives $\geq5$ upvotes. But this also seems unfair, as it could possibly deny them from the bounty forever.
(d) Or you could come up with another better option. Please hurry, I have only 3 days left.