I am confused and my brain is fried. Can someone help?

What I have to figure out is if the statements are true or false. If it's false than I have to fix the underline part to make it true.

Which of these internal feedback reactions does not need your brain? oa. your leg jumping when it is hit by a reflex hammer b. your deeper breathing when you need more oxygen c. your body temperature rising when you have an infection d. your heart beating faster when you are in danger