Correct usage, but there is some incorrect grammar.
In the story, Rainsford tried to take Zaroff out but fails everytime, even though his efforts were futile, Rainsford kept trying to survive the hunt.
You have to keep the tenses consistent. First you used past (tried) then you used present (fails).
Also, this sentence can be made into two; it is a run-on sentence.
Here's my revision: In the story, Rainsford <span>tried </span>to take Zaroff out but <span>failed </span>every time; but even though his efforts were futile, Rainsford kept trying to survive the hunt.
Since both sentences are related, I've linked them with a semicolon.
As you read, note the speaker’s specific examples of technology and how they compare to one another.
Answer: C
Explanation: A great way to try and get the overall idea of a text is to paraphrase the main idea, many authors use these types of writing techniques to get a reader hooked before even starting the 1st chapter.
Answer:
The answer for this question is C