Pulling a wagon uphill; the more uphill the wagon is, the greater amount of energy that will be exerted when the wagon moves downhill.
I don't know for certain but if I was the one answering my first thought would be C.) Dissociative.
1)Neurally Mediated Hypotension
2) Severe Hypotension linked to shock
3) Orthostatic Hypotension
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.