Nervous Digestive Circulatory Respiratory
I gave my students this multiple choice question: The list below gives some symptoms of people with the common cold. Symptoms of the Common Cold stuffy nose low fever sore throat cough Which body system is most affected by the common cold?

Only one answer is correct among these 4 choices:
- Nervous
- Digestive
- Circulatory
- Respiratory

Could you tell me which one is correct?

Respiratory