Which statement correctly summarizes the structures of the endocrine system? Group of answer choices

A The structures of the endocrine system release hormones only as an immune response, causing parts of the body to swell when someone is sick.

B All structures of the endocrine system are located within the brain.

C The structures of the endocrine system release hormones that regulate a person's mood, metabolism, and growth, among other functions.

D All structures of the endocrine system are shared with other body systems.