Most would argue that any time of hatred between groups of people is indeed based on ignorance, because people tend to dislike and fear what they do not know.
An author can create a slow-paced text by using short sentences
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Answer: B
Explanation
Short sentences and clear and straight forward, they help the reader to extract the meaning with having to thing and reread them.
Long sentences create a slow base when reading, thus losing the intended purpose.
The short sentence has a high base when reading and creates more interest to the reader, unlike long sentences.
A mixture of long and short sentences created confusion to the reader and challenged in understanding the points in the sentences.
While fragments are grammatically wrong sentences
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The answer is D.
In both speaking and writing, you are trying to convey a message. Even if you are just telling a story, or writing a fictional novel, you then want to take your audience to this made up place. You need details, but more importantly, you need words that are best suited to your audience. You have to be precise. If it's a younger audience, you wouldn't use complicated words, but if you're talking/writing about the subject of your phd, you're going to use a more technical language.
Overall message of the source is gaming involving teens.