Answer:
The answer is Letter B.
Step-by-step explanation:
The example of higher level control of autonomic function is increased heart rate when you see a person you fear.
Because, is a fight response from the body. Its how the body reacts to fear. The heart rate increases to pump more blood to the muscles and the brain. The lungs take in air faster to supply the body with oxygen.
It is an entire preparation, so that the body get ready for the danger.