The summary of this passage would be more clear if it included the detail that there was a dead virus living inside the monkey. This would make it seem far less random that there is a sudden mention of a monkey without context.
The central idea should also include the phrase "and spread throughout the human species" so that the idea of <em>why</em> a virus coming alive would be scary.
Answer is D, "<span>It connotes the youthful naivete of these soldiers."</span>
Answer: the answer is B.) this led to
Explanation: sorry i’m late but got it right on edge <3