The involuntary muscles associated with visceral organs that aid in rhythmic movements of the body are termed as

The correct option is C smooth muscle
The involuntary muscles associated with visceral organs are unstriated or smooth muscles. They are responsible for peristalsis or rhythmic contraction and relaxation as well as the regulation of blood pressure. They are under the control of the autonomous nervous system (ANS). Smooth muscle is found in the walls of hollow organs such as the stomach, oesophagus, bronchi and in the walls of blood vessels.