1st column: evolution 2nd column: to the conditions of their labor 3rd column: Plainly, this second species of Man was subterranean.
<span>There were three circumstances in particular </span>
<span>which made me think that its rare emergence </span>
above ground was the outcome of a long-continued
<span>underground habit. In the first place, </span>
<span>there was the bleached look common </span>
<span>in most animals that live largely </span>
<span>in the dark—the white fish of the Kentucky caves, for instance</span>
I think the answer is D) He was a selfless leader
