Answer: D
The answer is D because the information following "message" is the message. A colon is appropriate (as used in D) when the information after the colon describes or represents the word or phrase that comes before the colon.
Yes, "All teenagers are mean and smelly they really need to clean up their acts." is a run on sentence.
An effective<span> paragraph has three parts: </span>claim<span>, evidence, and analysis. </span>Claim<span>: This is also sometimes called a topic sentence.</span>
