Question

voluntary movements are carried out by the contraction of
smooth muscle.
cardiac muscle.
nonstriated muscle.
skeletal muscle.
all types of muscle.

Explanation:

Smooth muscle (involuntary, e.g., in organs), cardiac muscle (involuntary, heart), and nonstriated muscle (smooth muscle, involuntary) are not under voluntary control. Skeletal muscle is attached to bones and is controlled voluntarily for movements like walking, lifting. "All types" is incorrect as smooth and cardiac are involuntary. So voluntary movements are by skeletal muscle contraction.

Answer:

D. skeletal muscle.