It might not be the first one you considered.
It may not even look like anything you’d thought was worth considering.
It might be disguised as something completely different.
Best also isn’t necessarily objective.
If we were to consider everything in a vacuum, without any external factors or restrictions, then we might be able to come up with an objective best option.
But that isn’t possible. Reality doesn’t work that way.
We can control some factors. In most cases though, we just have to work with what we’ve got. We can’t know how or why things happen, we can only observe that they do.
And then use what we find, coupled with what we already know, to pick the best option for us.