Answer is Nitrogen...............
The nervous system helps:
Receptors in muscles provide the brain with information about body position and movement.
The brain controls the contraction of skeletal muscle.
The nervous system regulates the speed at which food moves through the digestive tract.
The nervous system regulates respiratory rate
The nervous system regulates heart rate and blood pressure.
Source: https://faculty.washington.edu/chudler/organ.html
The correct answer to your question would be TGA ATA CCT, So letter D) <span>TGA ATA CCT. Hope this helps you out let me know.</span>