Im thinking something like B.
1. Viewpoint. They're trying to make you see things their way. They're trying to show drunk driving is bad.
2. The techniques are if it is persuasive or informative and this is more informative.
3. I know the techniques are effective, they make you not want to drunk drive because you'll get caught and possibly arrested.
Hopefully this helps. Sorry I'm late I just thought while I'm doing the assignment I might as well help you out. I just helped someone else out too.
Couplet = couple = 2 lines
Quatrain = quadruple = 4 lines
Sestet = 6 lines
Octave = octagon = 8 lines
Thats how I try to remember it.