The answer would be B, because the other ones wouldn’t even make sense.
You need to include a picture of the diagram and the problem in order to get an answer to your question
Answer: Option B
Explanation:
Involuntary functions of the body system; processes taking place in the body that is done without conscious efforts such as digestion, bloodflow, the heartbeat are controlled by the autonomic nervous system which is a part of the peripheral nervous system.