circulatory system muscular system digestive system nervous system
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A gastroenterologist is a doctor who treats problems of the esophagus, stomach, and intestines. Which organ system is cared for by this type of doctor?
Possibilities:
- circulatory system
- muscular system
- digestive system
- nervous system

digestive system