Answer:
The best form of writing and the kind of supporting details that best support this audience and purpose are school newspaper article; details include facts and figures about the risks
Explanation:
The school newspaper is the easiest way to reach as many students as possible, they all attend school and they all are aware of the school's newspapers and most of them take a look at it, then the supporting information including facts and figures of the risk will make it a direct and easy to read piece of work, that teenagers would look at instead of an article charged with too much information.
