Out of the following choices;
A) skeletal muscles
B) internal organs, joints, and glands
C) skeletal muscles, skin, and glands
D) smooth muscles, cardiac muscles, and glands
The answer is A. This is because of the somatic nervous system control voluntary mechanisms of the body. The alternative is the autonomic nervous system that controls the involuntary mechanisms. The somatic nervous system comprises of the afferent neurons and efferent neurons.