A random act of violence from these options would be, B, an attack in which the assailant does not target specific people. This is due to the fact the act is completely randomized and the person does not know the people involved.
Explanation:
They dig Wells to get water passive voice
To regulate temperature and blood circulation/keep your body hydrated
Cardiovascular
sorry I only have 1, I couldn't think of another one. I hope this helps and you find the other one.