Voluntary muscle is also known as
(a) skeletal muscle.
(b) cardiac muscle.
(c) smooth muscle.

(A) Skeletal muscles.

Explanation:

Skeletal muscles are found in triceps and biceps where you voluntarily decide to contract or relax them in response to the activity you doing at that particular point in time, thus are termed voluntary muscles.

Skeletal muscles are straited and made of bundle fibers called fascicles covered by connective tissue sheath, epimysium. They are attached to bones and are mostly responsible for posture, provides stability to bones and also generate heat.

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