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:
C
Explanation:
There is no factual evidence that Americans are tougher than Russians.
In what condition did your friend find you when he visited your house?
Answer: Cassius actually believes that the Romans are strong.
Cassius actually believes that Caesar wants to be a tyrant.
Cassius actually believes that Caesar does not want to be a tyrant.
Cassius actually believes that Caesar is a victim.
Explanation: