Which of these excerpts is one of the main arguments in jack london's "the human drift"?

a. the history of civilization is a history of wandering, sword in hand, in search of food.
b. as soon as [man's] evolution permitted, he made himself better devices for killing than the old natural ones of fang and claw.
c. and yet, despite this terrible roll of death, there are to-day alive on the planet a billion and three quarters of human beings.
d. 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.

A. The history of civilization is a history of wandering, sword in hand, in search of food.

The main argument in Jack London's "The Human Drift" is that humans have always migrated due to hunger. Even when we discuss the motivations of migrants in terms of economic security or better opportunities, all of these arguments are ultimately reduced to freeing themselves from hunger. He argues that this is always the case, whether we are talking about people who lived thousands of years ago or Slovak immigrants who just arrived to Pennsylvania.

you shopuld find your answers here if you need more. the answer is the infinite variety of human nature