I haven't heard of PRICES method. I only know of PRICE which stands for P - protect
R - rest
I - ice
C - compress
E - elevate
However, since we are dealing with injuries, S can stand for SPLINT. You apply a splint on injuries with broken bones. This is to ensure that the edges of the broken bones will meld and mend together without any difficulty.
It would be C.
A would not be it because even if you have better roadways they may not help reduce the speed and instead increase it because the teen may like the smooth feeling.
B would not be it because the driver is under the influence. This usually can put the idea of going really fast in the driver's mind because "who would stop them?" and "what's the worst that could happen?"
D would not be it because the teenager may want to compete with the other driver to become victorious which would include in them speeding up.
Teens who smoke regularly might face health problems as they get older. This is because their lungs will be full of carbon dioxide and they will be black, also the person will be at a high risk of being a cancers patient