supporting the body and enabling it to move transporting oxygen, wastes, and nutrients throughout the body producing male and female gametes conducting messages to coordinate body functions
I gave my students this multiple choice question: The brain, spinal cord, and nerves are organs that perform which primary function?

Only one answer is correct among these 4 choices:
- supporting the body and enabling it to move
- transporting oxygen, wastes, and nutrients throughout the body
- producing male and female gametes
- conducting messages to coordinate body functions

Could you tell me which one is correct?

conducting messages to coordinate body functions