support and protect the body digest food and carry messages for the body get rid of wastes and defend the body from disease sense changes in the environment and carry food through the body
I gave my students this multiple choice question: What are the two main jobs of the skeletal system?

Only one answer is correct among these 4 choices:
- support and protect the body
- digest food and carry messages for the body
- get rid of wastes and defend the body from disease
- sense changes in the environment and carry food through the body

Could you tell me which one is correct?

support and protect the body