That would be the artery in your neck (carotid artery) because it's the artery that will have the strongest beat as it's closer to the surface of the skin.
Im an overthinking person to.. If you need someone to talk to or vent to even/if than Im here ^^
While the media does like to portray various effects of playing games on the brain, the reality is that there are actually were little, if any, effects how playing games could have dramatic long-lasting changes on our brains.
One of the more commonly observed things has been that people who do play a lot of shooting games and strategy games can have improved visual reaction times or are a little better at micromanaging. However, there is no drastic effects. Furthermore, games do not cause aggresive behavior, there is no substantial evidence for that claim :)
I think its B because you can't just wait until your next visit to the doctor to handle an emergency situation and you need to visit the ER