Maybe you can do a mystery??
The book is written with an emphasis on objectivity,
voicing the opinions of many character but also making sure to balance
it with relevant counter-arguments. That balance isn't always provided
immediately, often arising organically from the perspective of another
character with a different background.
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.
