In which the populations at risk have had no previous contact with the diseases that strike them and are therefore immunologically almost defenseless
I believe it's B. It requires special hardware,such as computer and speakers.
Answer:
A word!
Explanation:
Its a word because; a sentence looks like this; I went to the park today.
A fragment is this; Went to the park.
So therefore its a word!
The answer is: The pacing slows down the text with deliberate and descriptive language, which gives the story a mysterious atmosphere.
In the excerpt from "After Twenty Years," the author O. Henry describes the winter scene with details about the weather and the how the people in the street are behaving, which gives a sense of mystery to the story.
The rest of the options are incorrect because the events in the passage do not depict surprise, humor or alarm. Besides, there is no further description of the man, and the pacing is not fast.