The correct answers would be B. Social and D. Community
Gang presence and income inequality can be found in certain types of communities, your local neighborhood for example and that can have a big impact on underage drinking due to local pressure and learning bad behaviors from your environment. In addition gang presence and income inequality might also be found within your social circle including your friends and family which can lead to peer pressure and engaging in certain types of behaviors.
We know about it because there are official written records of those who broke the truce since the truce was at the time of the Olympics a divine thing that was to be respected by all from the area. Nowadays the truce does not exist in the same manner that it did back then.
A general approach is to stop CPR after 20 minutes if there is no ROSC or viable cardiac rhythm re-established. After multiple cycles of compression without results could cause injury to the victim, therefore you should call emergency services.