The answer is: [B]: Introduction .
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The sentence which uses correct punctuation is C. In time, of course, all issues get resolved, but not necessarily in the way you would like.
In A, the comma before <em>he was concerned </em>should be a dash. In B, there should be a colon before <em>a flashlight, </em>not a semi colon. In D, there should be a comma before <em>yet, </em>and not a colon.
Answer:
I believe it's A. But please get another source, I haven't really gone into this question
Explanation:
B. The tone is light hearted due to words like “whodunit” and “er taste.”
One for an author to manipulate time in a passage is by Using Flashback to manipulate time.
With flashback, the author could manipulate thee flow of the story, revealing what happen in different timeline to create one connecting story line
hope this helps<span />