To be honest, I'm not that sure on which one it is, but given choices lead me to think is the nervous system, probably because that's the reason our bodies are functioning, and compared to all other systems, the brain and the nervous system are needed for survival, otherwise you wouldn't be living.
Answer:
The p.e.r.i.e process is the process of five things: Problem, Etiology, Recommendations, Implementation, and Evaluation. These questions provide a framework for defining, analyzing, and addressing a wide range of health issues. This is evidence based public health
Explanation:
Yeah, I'm pretty sure. Although, can't make any promises.