Which of these excerpts is one of the main arguments in Jack London's "The Human Drift"?

The history of civilization is a history of wandering, sword in hand, in search of food.
As soon as [man's] evolution permitted, he made himself better devices for killing than the old natural ones of fang and claw.
And yet, despite this terrible roll of death, there are to-day alive on the planet a billion and three quarters of human beings.
And to this day, [man's] finest creative energy and technical skill are devoted to the same old task of making better and ever better killing weapons.

Question

Which of these excerpts is one of the main arguments in Jack London's "The Human Drift"?

The history of civilization is a history of wandering, sword in hand, in search of food.
As soon as [man's] evolution permitted, he made himself better devices for killing than the old natural ones of fang and claw.
And yet, despite this terrible roll of death, there are to-day alive on the planet a billion and three quarters of human beings.
And to this day, [man's] finest creative energy and technical skill are devoted to the same old task of making better and ever better killing weapons.