"God is the name by which I designate all things which cross my path violently and recklessly, all things which alter my plans and intentions, and change the course of my life, for better or for worse."
-C G Jung
Human nature dictates that we all act in what we think to be our own best interest.
That comes closest to option #1.
I think human nature is complex. As a whole we are capable of unimaginable evil, incredible goodness, stupefying idiocy, remarkable selfishness, and awesome beauty. Individuals are usually capable, at least in potential, of all of these things as well.
I think in the heart of humanity is a constant tug of war between malevolence and beneficence. Most people stay somewhere near the middle. Some give in to the Dark Side, lol. Some live an exceptional life of remarkable benevolence toward others.
Regardless of what the geneticists say, I think it is largely a matter of choice.
Four decades of observing human nature have not left me overly optimistic about how most people choose, however. Most people will do good if it benefits them in some way, or if it isn't very costly to them in any way they value.
A man's true nature is how he acts when he thinks no one will know what he has done; or whether he stands up for what he claims are his core principles when the cost of doing so will be high.
Fiddling While Rome Burns
Carthago Delenda Est
"I used to roll the dice; see the fear in my enemies' eyes... listen as the crowd would sing, 'now the old king is dead, Long Live the King.'.."