The correct answer here is definitely A.
The excerpt shows the wilderness it is dog eat dog world and the only the strongest will survive. This is even explicitly said in the sentence:
<span>The
blood-longing became stronger than ever before. He was a killer, a
thing that preyed, living on the things that lived, unaided, alone, by
virtue of his own strength and prowess, surviving triumphantly in a
hostile environment where only the strong survived.
</span>
<span></span>The wilderness does not care and it is a hostile environment and if you want to survive you have to strong.
<span />
According to this, the answer is A.
Answer: 4th one
Explanation: it would be the 4th one because the correct punctuation would be a commma.
i hope this helps!!!1