Option 1, though I, like John Dibble, don't like hunting just for the sake of killing something. Native Americans, when they killed a buffalo, used every single part of the animal's body for one thing or another, and only killed enough buffalo such that they could make use of every single buffalo they killed. I'm not, of course, expecting everyone nowadays to be exactly like the Native Americans were, but it's a good and sustainable model to work from.
Didn't the Buffalo hunting indians used to run whole herds of Buffalos off cliffs?
I don't see how they could not let some of that go to waste...............
They pretty much did eat it all, as weird as that is. And, if they didn't, it was an insignificant part. What the Native Americans did not use for eating they used to make things, such as clothing from the hide. They were very industrial about hunting, since they did not have much to eat. There was rarely more than needed.