the nervous system and the digestive system the digestive system and the circulatory system the respiratory system and the nervous system the muscular system and the nervous system
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which two systems of the body are interacting when a runner sprains his ankle?
Possibilities:
- the nervous system and the digestive system
- the digestive system and the circulatory system
- the respiratory system and the nervous system
- the muscular system and the nervous system

the muscular system and the nervous system